Question 254665: x to the 3rd - 2x to the second -15x = 0
forgot how to do it Found 3 solutions by stanbon, drk, palanisamy:Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! x to the 3rd - 2x to the second -15x = 0
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Factor:
x^3 - 2x^2 - 15x = 0
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x(x^2 -2x - 15) = 0
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x(x-5)(x+3) = 0
x = 0 or x = 5 or x = -3
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Cheers,
Stan H.
You can put this solution on YOUR website! Here is the problem:
step 1 - lok for any GCF. We have x, so we can rewrite as
step 2 -factor if possible. we get
step 3 - set each (_) = 0 and solve to get
x = 0
x = 5
x = -3
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