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Chapter 1: Q68. (page 36)

CHALLENGE Find all of the solutions of x2+5=30.

Short Answer

Expert verified

The solutions arex=5andx=鈭�5

Step by step solution

01

Step 1. Understand what is given.

Given:x2+5=30

02

Step 2. Make a strategy.

Our goal is to get x alone. We will subtract 5. Then we square root both sides.

03

Step 3. Calculation.

x2+5=30鈬�x2=30鈭�5鈬�x2=25鈬�x=25鈬�x=卤5

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