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OpenStudy (anonymous):
2x^2-7x-15=0
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OpenStudy (anonymous):
Use the quadratic formula to find x=-3/2 and x=5.
jhonyy9 (jhonyy9):
x_1,2 =(7+/- sqrt(49+120))/4 =(7+/-sqrt169)/4 = (7+/-13)/4 = = -3/2 and 5
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