please tell my answer fast
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Step-by-step explanation:
Given: -3x^2 y(7x^3 y-5x y^2)
solving the bracket one by one we get
(-3x^2 y × 7x^3 y) + (-3x^2 y × -5x y^2)
= -21x^5 y^2 + 15x^3 y^3
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