Question

WILL GIVE 5 STARS!!

Marshall uses the polynomial identity (x−y)^2=x^2−2xy+y^2 to show that 8² = 64.

What values can Marshall use for x and y?

Answer 1

Answer: C

Explanation:

(x - y)²

we want (8)², so need: x - y = 8

There are many options that satisfy x - y = 8 but of the options provided to you, 10 - 2 is the only one that works.

A) 2 - 6 = -4

B) 64 - 0 = 64

C) 10 - 2 = 8

D) 8 - 64 = -56