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Mathematics 18 Online
OpenStudy (anonymous):

Which equation is a quadratic equation? y = 2x(5 − x) + 7x y = 8x + 2 y + x2 = (x − 2)(x + 8) y − 7x = (x2 + 1)(x − 3)

OpenStudy (anonymous):

1

OpenStudy (anonymous):

yeah,,it A.

OpenStudy (anonymous):

thanks guys!!

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