Question

(2x-5y)^3
question of polynomials chapter

Answer 1

anwer is -5

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Answer 2

Explanation:

1. Using the proprty,

(x-y)^3 = x^3 - ^3 -3xy (x-y)

x = 2x,

y = 5y

(2x y)^3 = (2x) - (5y)^3 - 3*2x*5y (2x - 5y)

8x^3 - 125y^3 - 30xy*2x - 30xy*5y

8x^3 - 123y^3 - 60x^2y - 150xy^2

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