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3^-2/n and 7ab^-2/3w .
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Will someone please check my answers?
1. Multiply. (a^+2ab-b^2)(a^2-7ab+b^2) my answer:a^4-5a^3b-14a^2b^2+8ab^3-b^4 2. Simplify.
The last one which you were asking where the b came from I typed the wrong problem sorry.
the problem is 49-a^2b^2 Is the answer:
add (4a^2b-3ab^2+2ab+5) and (2a^2b+3ab^2-7ab)
(4a^2b-3ab^2+2ab+5)+(2a^2b+3ab^2-7ab)