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Elementary Algebra

Lynn Marecek

Chapter 7

Factoring - all with Video Answers

Educators

LS

Section 1

Greatest Common Factor and Factor by Grouping

00:40

Problem 1

Find the greatest common factor.
8,18

Sherrie Fenner
Sherrie Fenner
Numerade Educator
01:13

Problem 2

Find the greatest common factor.
24,40

LS
Lulude Sun
Numerade Educator
02:15

Problem 3

Find the greatest common factor.
72,162

Debra Garey
Debra Garey
Numerade Educator
01:36

Problem 4

Find the greatest common factor.
150,275

Debra Garey
Debra Garey
Numerade Educator
00:57

Problem 5

Find the greatest common factor.
$10 a, 50$

Debra Garey
Debra Garey
Numerade Educator
00:38

Problem 6

Find the greatest common factor.
$5 b, 30$

Debra Garey
Debra Garey
Numerade Educator
01:24

Problem 7

Find the greatest common factor.
$3 x, 10 x^{2}$

LS
Lulude Sun
Numerade Educator
01:02

Problem 8

Find the greatest common factor.
$21 b^{2}, 14 b$

LS
Lulude Sun
Numerade Educator
01:17

Problem 9

Find the greatest common factor.
$8 w^{2}, 24 w^{3}$

Brandon Fox
Brandon Fox
Numerade Educator
01:21

Problem 10

Find the greatest common factor.
$30 x^{2}, 18 x^{3}$

LS
Lulude Sun
Numerade Educator
01:07

Problem 11

Find the greatest common factor.
. $10 p^{3} q, 12 p q^{2}$

LS
Lulude Sun
Numerade Educator
01:14

Problem 12

Find the greatest common factor.
$8 a^{2} b^{3}, 10 a b^{2}$

LS
Lulude Sun
Numerade Educator
01:23

Problem 13

Find the greatest common factor.
$12 m^{2} n^{3}, 30 m^{5} n^{3}$

LS
Lulude Sun
Numerade Educator
03:08

Problem 14

Find the greatest common factor.
$28 x^{2} y^{4}, 42 x^{4} y^{4}$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:49

Problem 15

Find the greatest common factor.
$10 a^{3}, 12 a^{2}, 14 a$

Gokul R  Nair
Gokul R Nair
Numerade Educator
04:06

Problem 16

Find the greatest common factor.
$20 y^{3}, 28 y^{2}, 40 y$

Gokul R  Nair
Gokul R Nair
Numerade Educator
01:33

Problem 17

Find the greatest common factor.
$35 x^{3}, 10 x^{4}, 5 x^{5}$

Debra Garey
Debra Garey
Numerade Educator
04:38

Problem 18

Find the greatest common factor.
$27 p^{2}, 45 p^{3}, 9 p^{4}$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:51

Problem 19

Factor the greatest common factor from each polynomial.
$4 x+20$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:52

Problem 20

Factor the greatest common factor from each polynomial.
$8 y+16$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:20

Problem 21

Factor the greatest common factor from each polynomial.
$6 m+9$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:31

Problem 22

Factor the greatest common factor from each polynomial.
$14 p+35$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:12

Problem 23

Factor the greatest common factor from each polynomial.
$9 q+9$

Gokul R  Nair
Gokul R Nair
Numerade Educator
02:44

Problem 24

Factor the greatest common factor from each polynomial.
$7 r+7$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:27

Problem 25

Factor the greatest common factor from each polynomial.
$8 m-8$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:37

Problem 26

Factor the greatest common factor from each polynomial.
$4 n-4$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:32

Problem 27

Factor the greatest common factor from each polynomial.
$9 n-63$

Gokul R  Nair
Gokul R Nair
Numerade Educator
04:16

Problem 28

Factor the greatest common factor from each polynomial.
$45 b-18$

Gokul R  Nair
Gokul R Nair
Numerade Educator
04:50

Problem 29

Factor the greatest common factor from each polynomial.
$3 x^{2}+6 x-9$

Gokul R  Nair
Gokul R Nair
Numerade Educator
04:09

Problem 30

Factor the greatest common factor from each polynomial.
$4 y^{2}+8 y-4$

Gokul R  Nair
Gokul R Nair
Numerade Educator
04:00

Problem 31

Factor the greatest common factor from each polynomial.
$8 p^{2}+4 p+2$

Gokul R  Nair
Gokul R Nair
Numerade Educator
04:17

Problem 32

Factor the greatest common factor from each polynomial.
$10 q^{2}+14 q+20$

Gokul R  Nair
Gokul R Nair
Numerade Educator
04:39

Problem 33

Factor the greatest common factor from each polynomial.
$8 y^{3}+16 y^{2}$

Gokul R  Nair
Gokul R Nair
Numerade Educator
04:37

Problem 34

Factor the greatest common factor from each polynomial.
$12 x^{3}-10 x$

Gokul R  Nair
Gokul R Nair
Numerade Educator
05:16

Problem 35

Factor the greatest common factor from each polynomial.
$5 x^{3}-15 x^{2}+20 x$

Gokul R  Nair
Gokul R Nair
Numerade Educator
05:22

Problem 36

Factor the greatest common factor from each polynomial.
$8 m^{2}-40 m+16$

Gokul R  Nair
Gokul R Nair
Numerade Educator
06:25

Problem 37

Factor the greatest common factor from each polynomial.
$12 x y^{2}+18 x^{2} y^{2}-30 y^{3}$

Gokul R  Nair
Gokul R Nair
Numerade Educator
05:44

Problem 38

Factor the greatest common factor from each polynomial.
$21 p q^{2}+35 p^{2} q^{2}-28 q^{3}$

Gokul R  Nair
Gokul R Nair
Numerade Educator
04:44

Problem 39

Factor the greatest common factor from each polynomial.
$-2 x-4$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:54

Problem 40

Factor the greatest common factor from each polynomial.
$-3 b+12$

Gokul R  Nair
Gokul R Nair
Numerade Educator
02:49

Problem 41

Factor the greatest common factor from each polynomial.
$5 x(x+1)+3(x+1)$

Gokul R  Nair
Gokul R Nair
Numerade Educator
01:49

Problem 42

Factor the greatest common factor from each polynomial.
$2 x(x-1)+9(x-1)$

Gokul R  Nair
Gokul R Nair
Numerade Educator
02:17

Problem 43

Factor the greatest common factor from each polynomial.
$3 b(b-2)-13(b-2)$

Gokul R  Nair
Gokul R Nair
Numerade Educator
01:45

Problem 44

Factor the greatest common factor from each polynomial.
$6 m(m-5)-7(m-5)$

Gokul R  Nair
Gokul R Nair
Numerade Educator
04:00

Problem 45

Factor by grouping.
$x y+2 y+3 x+6$

Gokul R  Nair
Gokul R Nair
Numerade Educator
04:22

Problem 46

Factor by grouping.
$m n+4 n+6 m+24$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:39

Problem 47

Factor by grouping.
$u v-9 u+2 v-18$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:37

Problem 48

Factor by grouping.
$p q-10 p+8 q-80$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:47

Problem 49

Factor by grouping.
$b^{2}+5 b-4 b-20$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:31

Problem 50

Factor by grouping.
$m^{2}+6 m-12 m-72$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:48

Problem 51

Factor by grouping.
$p^{2}+4 p-9 p-36$

Gokul R  Nair
Gokul R Nair
Numerade Educator
04:08

Problem 52

Factor by grouping.
$x^{2}+5 x-3 x-15$

Gokul R  Nair
Gokul R Nair
Numerade Educator
04:58

Problem 53

Factor.
$-20 x-10$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:30

Problem 54

Factor.
$5 x^{3}-x^{2}+x$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:42

Problem 55

Factor.
$3 x^{3}-7 x^{2}+6 x-14$

Gokul R  Nair
Gokul R Nair
Numerade Educator
04:51

Problem 56

Factor.
$x^{3}+x^{2}-x-1$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:20

Problem 57

Factor.
$x^{2}+x y+5 x+5 y$

Gokul R  Nair
Gokul R Nair
Numerade Educator
04:30

Problem 58

Factor.
$5 x^{3}+3 x^{2}-5 x-3$

Gokul R  Nair
Gokul R Nair
Numerade Educator
03:20

Problem 59

The area of a rectangle with length 6 less than the width is given by the expression $w^{2}-6 w$, where $w=$ width. Factor the greatest common factor from the polynomial.

Gokul R  Nair
Gokul R Nair
Numerade Educator
06:29

Problem 60

The height of a baseball $t$ seconds after it is hit is given by the expression $-16 t^{2}+80 t+4$. Factor the greatest common factor from the polynomial.

Gokul R  Nair
Gokul R Nair
Numerade Educator
00:30

Problem 61

The greatest common factor of 36 and 60 is 12 . Explain what this means.

Brandon Fox
Brandon Fox
Numerade Educator
01:14

Problem 62

What is the GCF of $y^{4}, y^{5}$, and $y^{10} ?$ Write a general rule that tells you how to find the GCF of $y^{a}, y^{b},$ and $y^{c}$.

Brandon Fox
Brandon Fox
Numerade Educator