SOLUTION: Multiply (a^2+2ab-b^2)(a^2-7ab+b^2)
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Question 45174
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Multiply (a^2+2ab-b^2)(a^2-7ab+b^2)
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checkley71(8403)
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(a~2+2ab-b~2)(a~2-7ab+b~2)=a~4-9a~3b-14a~2b~2-5ab~3-b~4
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