Factorise 2x cube minus 3 x square 17 x 30
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Factorise 2x cube minus 3x square - 17x + 30
Answered by admin @
2x^3 - 3x^2 - 17x + 30
= 2x^3 - 4x^2 +x^2 -2x - 15x + 30
=2x^2(x-2) +x(x-2) -15(x-2)
=(x-2)(2x^2 +x -15)
=(x-2)(2x^2 +6x -5x -15)
=(x-2)(2x(x+3) -5(x+3))
=(x-2)(x+3)(2x-5)
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