Question

Evaluate (x−y)2, when x=10 and y=7.

Answer 1

6

Explanation:

1. Plug in for variables x & y

(10-7)2

2. solve for parantheses (B/c of PEMDAS)

(10-7)=3

3. Multiply by 2

3(2) =6

Your answer is 6 :)

Answer 2

9

Explanation:

(x-y)^2

Let x=10 and y=7

(10-7)^2

Inside the parentheses first

3^2

Then the exponent

9