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OpenStudy (anonymous):
Solve 8x2 + 7x - 15 = - 7.
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OpenStudy (anonymous):
add 7 to -15 and use quadratic equation to solve
OpenStudy (solomonzelman):
\(\large\color{darkorange }{ \rm 8x^2 + 7x - 15 = - 7 \ }\) \(\large\color{darkorange }{ \rm 8x^2 + 7x - 8 = 0 \ }\) use quadratic formula.
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