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In $3-18,$ write each number in terms of $i$$$\sqrt{-81}$$

9$i$

Algebra

Chapter 5

QUADRATIC FUNCTIONS AND COMPLEX NUMBERS

Section 4

The Complex Numbers

Equations and Inequalities

Quadratic Functions

Complex Numbers

Polynomials

Campbell University

Baylor University

Idaho State University

Lectures

01:32

In mathematics, the absolu…

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01:10

In $3-18,$ write each numb…

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Okay, So this question is asking us to put Thescore air route of negative 81 into I format to imaginary number format. So what I'm gonna do is take out that negative one, and you can hopefully remember that an 81 is a perfect square. So nine times nine is 81. So this here is an eye and this is nine. So this is equal to nine. I

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