Math, asked by hariomprasadsha, 2 days ago

3x-5
Find the cube with help of formula

Answers

Answered by shreyasengupta1862

1

(a-b)^3 = a^3 - b^3 - 3ab(a-b)

Hence (3x-5)^3 = (3x)^3 - (5)^3 -3*3x*5(3x-5)

=> 9x^3 - 125 - 45x(3x-5)

=> 9x^3 - 125 - 135x^2 + 225x (Answer)

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