![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
Ab-2a ^ 2B ^ 2 + A ^ 3B ^ 3 AB = - 2
a-b=5,ab=3,a*3b-2a*2b*2+ab*3=?
Block Description: for example, a * 3B represents the third power of a multiplied by B
a^3b-2a^2b^2+ab^3
=ab(a^2-2ab+b^2)
=ab(a-b)^2
=3*25
=75
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