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Proving Polynomial Identities

Proving Polynomial Identities 1.1 - Solution

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a
We have a positive sign inside of the parentheses so we'll use one of the rules for the square of a binomial. Our expression gives and
Simplify power and product
b
We have a negative sign inside of the parentheses so we'll use the rule: Our expression gives and
Simplify power and product
c
We'll use the positive squared binomial here as well. Now and Remember to raise the entire term by the power of two.
Simplify power and product