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Chapter 9: Q 710 (page 1151)

In the following exercises, solve the equation:

s-9-s=-9

Short Answer

Expert verified

The required value of the given equation iss1=9,s2=10

Step by step solution

01

Step 1. Given information

Given equation iss-9-s=-9

02

Step 2.  Solve the equation using square roots.

s-9-s=-9鈬�s-9=(-9+s)2鈬�s-9-(-9+s)2=0鈬�(-9+s)(1-(-9+s))=0鈬�(-9+s)(10-s)=0

Separate into possible values

-9+s=0鈬�s=910-s=0鈬�s=10

03

Step 3. Check

Puts=9

9-9-9=-9

L.H.S is equal to R.H.S

s=9is a solution.

Put s=10

localid="1650705402490" 10-9-10=-9

L.H.S is equal to R.H.S

s=10is a solution.

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