Which equation is equivalent to the given equation?
a. (x+8)^2=86 b. (x+8)^2=38 c. (x+16)^2= 278 d. (x+4)^2= 22
Expand (x+8)2 in answer A. and obtain x2 + 16x + 64 = 86
When you subtract 64 from both sides, it is x2 + 16x = 22
So the correct answer is selection a. as in applesauce.