X^2-8x+16=1

What is this answer

Mmiinus 1 from both sides to get it equal to zero

x^2-8x+15=0

factor

what 2 numbers multiply to get 15 and add to get - 8

-5 and - 3

(x-5) (x-3) = 0

set each to zero

x-5=0

x=5

x-3=0

x=3

x=3 and 5

x=4 is the answer

Because it's a square root to the X, there's going to be 2 answers. After solving it I got x = 3,5