body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} ! You must have JavaScript enabled to use this site.

Pearson Algebra 1 Common Core, 2011

PA

Pearson Algebra 1 Common Core, 2011 View details

Get Ready

Finish the assignment

Continue to next subchapter

Exercise 15 Page 415

Substitute - 2 for a and 5 for b.

49

Practice makes perfect

To evaluate the given expression for a = - 2 and b = 5, we should substitute these values into the expression and simplify as much as possible.

(a-b)^2

a= - 2, b= 5

( - 2- 5)^2

Subtract term

(- 7)^2

Calculate power

49