Question

Which polynomial is a difference of two squares? (4 points)

x2 - 12
x2 + 12
x2 - 36
x2 + 36

Answer 1

Is 12 a square or is 36 a square?

Answer 2

Also the keyword there is "difference" of two squares

Answer 3

36 @mathstudent55

Answer 4

Good, now a difference of two squares means:
(x-a)(x+a)
= x^2 - ax + ax - a^2
= x^2 - a^2
which one of those are like this one?

Answer 5

c

Answer 6

Correct. You need 36.
Also, "difference" means a subtraction.

Answer 7

C. is correct.

Answer 8

k thanxs

Answer 9

You're welcome.