find the product of (a2+2ab) and (4ab+b2)
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Step-by-step explanation:
a^2×4ab + a^2×b^2 + 2ab×4ab + 2ab×b^2
4a^3b + a^2b^2 + 8 a^2 b^2 + 2 a b^3
4a^3 b + 9 a^2 b^2 + 2 a b^3
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