Hi Haley,
Find the product mentally. [(x + 1)(x - 1)]^2
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Solution:
= (x^2 − 1)^2
= (x^2 − 1) * (x^2 − 1)
Answer: x^4 − 2x^2 + 1
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Hope This Helps :)
I presume it should be [(x + 1)(x - 1)]²
in that its
(x + 1)(x - 1) is a differences of squares products do its x²-1
(x²-1)² is a standard square or ax² + 2ab + c²
so its x^4 - 2x² + 1
