Question

Given (x+1)2=9, solve for x

Answer 1

x=7/2 x=3.5

Explanation:

divide both sides by 2

(x+1)(2)/2=9/2

simplify

x+1=9/2

subtract 1 from both sides

x+1-1=9/2-1

simplify

x=7/2

Answer 2

x= 7/2

2(x+1)=9

x+1=9/2

x=9/2 - 1

x=7/2