Question

solve (x+5)^2 = 16

Answer 1

x=-1

Answer 2

x=-1 or x=-9

Answer 3

^ oh yeah, you're right, it can be either -1 or -9

Answer 4

you root both sides and get +-

Answer 5

(x+5)^2=16
x^2+2(5)(x)+25=16
x^2+10x+9=0
x^2+x+9x+9=0
x(x+1)+9(x+1)=0
(x+9)(x+1)=0
x+9=0 ; x=-9
x+1=0 ; x=-1