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6x3 + 4x2 = 2x
Subtract 2x from each side:
6x3 + 4x2 - 2x = 0
Divide each side by 2:
(Don't divide by 'x' ... you'll lose a root.)
3x3 + 2x2 -x = 0
Factor the left side:
x (3x2 + 2x - 1) = 0
x (3x - 1) (x + 1) = 0
x = 0
x = 1/3
x = -1
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∙ 13y ago
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