因式分解:a^2(a-2b)^2-9(x+y)^2

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因式分解:a^2(a-2b)^2-9(x+y)^2因式分解:a^2(a-2b)^2-9(x+y)^2因式分解:a^2(a-2b)^2-9(x+y)^2a^2(a-2b)^2-9(x+y)^2=[a(a

因式分解:a^2(a-2b)^2-9(x+y)^2
因式分解:a^2(a-2b)^2-9(x+y)^2

因式分解:a^2(a-2b)^2-9(x+y)^2
a^2(a-2b)^2-9(x+y)^2
=[a(a-2b)]^2-[3(x+y)]^2
=(a^2-2b)^2-(3x+3y)^2
=(a^2-2b+3x+3y)(a^2-2b-3x-3y)

a^2(a-2b)^2-9(x+y)^2
=[a(a-2b)]^2-[3(x+y)]^2
=(a^2-2ab)^2-(3x+3y)^2
=(a^2-2ab+3x+3y)(a^2-2ab-3x-3y).