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Factor. If an expression is prime, so indicate.$$30 r^{5}+63 r^{4}-30 r^{3}$$

$3 r^{3}(5 r-2)(2 r+5)$

Algebra

Chapter 6

Factoring and Quadratic Equations

Section 3

Factoring Trinomials of the Form $a x^{2}+b x+c 454$

Equations and Inequalities

Quadratic Functions

Oregon State University

McMaster University

Harvey Mudd College

University of Michigan - Ann Arbor

Lectures

02:38

Factor completely. If the …

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Factor completely. If a po…

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Factor completely.$$

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Factor completely. State w…

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Factor. If an expression i…

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Factor each expression com…

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Factor expression complete…

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Factor completely. Remembe…

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Factor completely.$r^{…

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Factor completely.$$30…

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Factor the given expressio…

Factor completely.$$3 …

Okay, so it's factoring out a three cute, So left with 10 Arctic are too plus 60 feet, right about three is 21 all right, squared minus 10 And now, using our grouping method, didnt see that A is equal to 10. B is equal to 21 and see it's equal to make it a 10. Our key number physical to eight times. See, which is 10 times negative. 10. And that gives me they got 100. So we need to Numbers who's caught up is equal to negative 100. And who's Dalton is equal to 21 so we can choose 25 4 And in order for 25 on four to something to 21 we need our floor to be negative, and that gives us a negative product. And that's what we want. So it's put up or 21 r squared into, um 25 R minus four. Or right now we have the falling What's factor? The first deters. So contract out a five left with a 10 divided by five is, too. What to arm. You know, Flo. Factor out tonight to get two armed, plus five and in for our last two terms. In fact, out negative to get two armed. That's five. Okay, And now that we have these two tours and comment, we contracted out and were left with three R cubed times to arm. That's five times five or minus two.

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