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Solve $x^{2}=-9$ for $x$, then simplify the answers.

Algebra

Chapter 8

Quadratic Functions

Section 1

Introduction to Radical Notation

Equations and Inequalities

Campbell University

Oregon State University

Harvey Mudd College

Lectures

00:58

Solve.$$x^{2}=-9

01:09

Solve $x^{2}+2 x=9$.

00:09

Solve.$(x-2)^{\frac{2}…

00:54

Solve.$$x^{2}-9 x=…

00:49

Solve.$$(x+1)^{2}=…

01:25

Solve for $x$ in.$$9^{…

00:27

Solve each equation.$$…

02:10

Solve the equation.$$9…

03:02

02:03

Solve.$x^{4}-8 x^{2}=9…

00:57

Solve the equation $x^{2}-…

Solve.

$$\frac…

01:16

Solve each equation and ch…

01:28

01:32

01:04

02:07

Solve the equations.$$…

00:48

Solve the equation.$$4…

00:56

in this problem we have that X squared is equal to a bit of mine and we want to solve for X. So the first thing you wanna do is square here that gets rid of the score. Only eggs and we're left with X is equal to plus and minus the square root of emanated of mine. Well, we know that we can't have a negative inside of the straight route, so we're gonna take it out. We're gonna say that X is equal to plus or minus is going online times the square root of negative one. And that's the same thing. Ask this quarter of a 1,000,000 die. But we know that the square root of negative one is equal to I or imaginary numbers so clear with simplify this and we're gonna put the exes speak quoted person. Linus was escorted a minus three. We know that with square more than they won, I they were left work plus and minus the I

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