Question

If x^2 = 196, what is the sum of the possible values of (x −1)^2?

Answer 1

Explanation:

x²=196

x=±14

when x=14

(x-1)²=(14-1)²=13²=169

when x=-14

(x-1)²=(-14-1)²=(-15)²=225

sum=169+225=394