SOLUTION: We are doing a chapter called "Factoring When Either Square Is A Square Of A Polynomial" and I'm having alot of trouble factoring this problem: a^2-(a+b)^2. I tried it like this: (

Question 956356: We are doing a chapter called "Factoring When Either Square Is A Square Of A Polynomial" and I'm having alot of trouble factoring this problem: a^2-(a+b)^2. I tried it like this: (a-a-b)(a+a+b) but it's still the wrong answer. They are telling me I'm missing one final step and I don't understand why. Please explain.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
We are doing a chapter called "Factoring When Either Square Is A Square Of A Polynomial" and I'm having alot of trouble factoring this problem: a^2-(a+b)^2. I tried it like this: (a-a-b)(a+a+b) but it's still the wrong answer. They are telling me I'm missing one final step and I don't understand why. Please explain.
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Combine like terms.
(a-a-b)(a+a+b) = -b*(2a + b)

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