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OpenStudy (anonymous):
Quadratic equation Solve 3x2 = -12x - 15
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OpenStudy (cwrw238):
3x^2 + 12x + 15 = 0 divide through by 3:- 3(x^2 + 4x + 5) = 0 now solve the equation in the parentheses for x it won't factor so you need to use the quadratic formula
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