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In $3-18,$ write each number in terms of $i$$$-3+2 \sqrt{-9}$$

$-3+6 i$

Algebra

Chapter 5

QUADRATIC FUNCTIONS AND COMPLEX NUMBERS

Section 4

The Complex Numbers

Equations and Inequalities

Quadratic Functions

Complex Numbers

Polynomials

Missouri State University

Baylor University

University of Michigan - Ann Arbor

Lectures

01:32

In mathematics, the absolu…

01:11

00:44

In $3-18,$ write each numb…

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00:33

00:41

01:23

01:10

01:44

01:39

Okay. Our next one here is taking a negative three plus two times the square root of negative nine and putting this into terms of I so are negative. Three stays and then hear this nine is a perfect square. So I have to times a square root of negative one times the square root of nine. And this is I and this is three. And so here I have a negative three. That guy stays and I have a two times of three. So that's six and the eye. And you can't combine these two because they're not like terms, So this is our final answer.

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