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17-05-2018
Mathematics

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Factor by grouping: 3x^3 - 4x^2 + 15x - 20

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17-05-2018

3x^3 - 4x^2 + 15x - 20
= x^2(3x - 4) + 5(3x - 4)
= (x^2 + 5)(3x - 4) answer

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