-9 to the second power - (-6) to the second power

2 answers

To quote another Jiskha tutor:

"You will find here at Jiskha that long series of questions, posted with no evidence of effort or thought by the person posting, will not be answered. We will gladly respond to your future questions in which your thoughts are included."
(-9)^2 - (-6)^2

is in the format of (a^2 - b^2).

(a^2 - b^2) = (a+b)(a-b)

So, (-9)^2 - (-6)^2 = (-9 + -6)(-9 - -6)
= -15 * -3
= 45

So the answer is 45.