What is a difference of squares that has a factor of x+8?

its c

Step-by-step explanation:

did it on edgunity

x^2 - 64

Step-by-step explanation:

A difference of squares is a special product in the form (a^2 - b^2) ... their factored form is (a - b) (a + b) ...

Thus here a = x and b = 8, thus if x + 8 is a factor, then x - 8 is also a factor ...

(x + 8) (x - 8) <- - expand this out using difference of squares rules ...

= (x) ^2 - (8) ^2

= x^2 - 64 <- - answer ...

You could also expand that using FOIL (FOIL - first, outer, inner, last) ...

(x + 8) (x - 8)

= (x) (x) + (x) (-8) + (8) (x) + (8) (-8)

= x^2 - 8x + 8x - 64 <- - the - 8x and 8x cancels out ... leaving you with ...

= x^2 - 64