factorise : 1. a^3x^3 - 3a^2bx^2+3ab^2x - b^3
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(ax)^3 -(b) ^3 - 3 a*X*b ( ax-b)
it is (ax-b) ^3
it is (ax-b) ^3
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hey mate
here's the solution
here's the solution
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