Question

in the polynomial below what number should replace the ? to produce a difference of squares

x^2+?x-36

Answer 1

I'm not sure what you mean...

Answer 2

Oh, I see.

Answer 3

So what is difference of squares, in general form?

Answer 4

that's what the question said

Answer 5

No, not exactly.

Answer 6

a^2 - b^2 is difference of squares.

Answer 7

Think of how to turn that expression into something of that form.

Answer 8

(hint: 36=6^2)