SOLUTION: (4x+9)(15x^2-7x-2)=0

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Question 687792: (4x+9)(15x^2-7x-2)=0
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
4x(15x^2) + 4x(-7x) + 4x(-2) + 9(15x^2) + 9(-7x) + 9(-2) = 0
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60x^3 + -28x^2 + -8x + 135x^2 + -63x + -18 = 0
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highlight_green%2860x%5E3+%2B+107x%5E2+-+71x+-+18+=+0%29
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(4x+9)(15x^2-7x-2)=0
(4x+9)(5x+1)(3x-2)=0
x = -9%2F4, -1%2F5 and 2%2F3
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