Question 1020917
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Simplify: (a-b)^2(a+b)^2+2a^2b^2
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{{{(a-b)^2(a+b)^2+2a^2b^2}}} = {{{(a^2-b^2)^2 + 2a^2b^2}}} = {{{a^4 + b^4}}}.