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OpenStudy (anonymous):
Which equation is a quadratic equation? 3x − y = 8x + 2 y = 7x(5 − 2x) + 9 7x2 + y = (3 + x)(7x − 1) y − 3 = (x2 − 3)(8x + 3)
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OpenStudy (aravindg):
@sumsumjoe do you know what is a quadratic equation ?
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