(ii)
(4x - 5y) (16x2 + 20xy + 25y2)
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Answer:
64x^3-125y^3
Step-by-step explanation:
4x(16x2 + 20xy + 25y2)-5y(16x2 + 20xy + 25y2)
= 64x3+80x2y+100xy2-80x2y-100xy2-125y3
=64x^3-125y^3
I hope my answer helps you☺☺
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