Question

Determine which polynomial is a difference of two squares:
A. a2 + 36
B. a2 − 36
C. a2 − 12
D. a2 + 12?

Answer 1

is 12 a square number?

Answer 2

1. determine if the number is a square number.
2. determine if the expression is a 'difference'
3. tell us if you still need help!

Answer 3

Okay thank you!

Answer 4

So by process of elimination using your #2 it would be narrowed down to B and C?

Answer 5

Yes. And?

Answer 6

By using #1 it would be B because 36 = 6 x 6 but 12 cannot?

Answer 7

Yes!

Answer 8

Thank you so much!

Answer 9

welcome!