Answer:
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(4x2 + 2y)(3x+y^2)
= 12x^3 + 4x^2y^2 + 6xy + 2y^3
coefficient of xy is ----> 6
Length times width and that will get you an answer
It be 81.
You have to take half of -18 which is -9, and square that, which is 81.
