Question

Find the product mentally.

[(x + 1)(x - 1)]2

A.x4 + 2x2 - 1

B.x2 - 1

C.x4 - 2x2 + 1
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This one I just have no idea..

Answer 1

Do the inside first and the outside second

Answer 2

Also, see how there are two x's? This means that the highest degree of x will be 2, so your best best is to find the answer that has x raised to the 2nd degree.

Answer 3

Oh wait....did you mean\[[(x+1)(x-1)]^2\]

Answer 4

If so the answer will actually be C.

Answer 5

Ya thats what I meant
And thanks for the help :)

Answer 6

Welcome :)