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Solve this equation with steps so I understand -16x^3+4x=0
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Jul 5, 2018
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Solve this equation with steps so I understand
-16x^3+4x=0
Mathematics
high-school
Seanmichael
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-16x^3+4x=0
-4x(4x^2 - 1) = 0
-4x(2x+1)(2x - 1) = 0 (factor using a^2 - b^2 = (a+b)(a-b))
-4x = 0; x =0
2x +1 = 0;x = -1/2
2x - 1 =0; x = 1/2
answer: x = 0, x = 1/2 and x = -1/2
Stiig
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Jul 10, 2018
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Stiig
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