# In Exercises 13 to 16, evaluate each expression. a 2 + b 2 , if a = 5 and b = 7

### Elementary Geometry For College St...

7th Edition
Alexander + 2 others
Publisher: Cengage,
ISBN: 9781337614085

### Elementary Geometry For College St...

7th Edition
Alexander + 2 others
Publisher: Cengage,
ISBN: 9781337614085

#### Solutions

Chapter
Section
Chapter A.2, Problem 14E
Textbook Problem

## In Exercises 13 to 16, evaluate each expression. a 2 + b 2 ,  if  a = 5  and  b = 7

Expert Solution
To determine

To evaluate:

The given expression a2+b2

### Explanation of Solution

1) In an algebraic expression, letters can stand for numbers.

2) Substitute a specific value for each variable.

3) Then perform the operations.

Calculation:

Given:

Expression: a2+b2

Substitute a=5Â andÂ b=7 in the given expression, we get

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