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Chapter 12: Q. 1 (page 840)

Find all the solutions, real and complex, of the equationx2=9

Short Answer

Expert verified

The solution is x=-3,3,-3i,3i.

Two roots are real and two are imaginary.

Step by step solution

01

Step 1. Given Information

Given equation isx2=9

02

Step 2. Finding solution

x2=9x2=±9x2=9orx2=-9

Now,x2=9x=±3andx2=-9x=-3i,3i

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Most popular questions from this chapter

In Problems 37–50, a sequence is defined recursively. Write down the first five terms.

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