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OpenStudy (anonymous):
Identify which equation is a quadratic equation. y = −6x − 3 y + x2 = (x − 1)(x + 7) y − 9 = (x − 1)(x2 + 4) y = 5x(x + 3) − 8
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OpenStudy (anonymous):
Simplify them and check.
OpenStudy (anonymous):
then what?
OpenStudy (anonymous):
Then you'll know. All you have to do is simplify each equation and you'll know whether they're a quadratic or not.
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