SOLUTION: Which equation is a quadratic equation? 5x + y = −2(x + 5) 3x3 − y = (3x − 2)(x + 5) y + 7x = −3x(7 − 2x) + 11 y − 9 = (x2 + 1)

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Question 549859: Which equation is a quadratic equation?
5x + y = −2(x + 5)
3x3 − y = (3x − 2)(x + 5)
y + 7x = −3x(7 − 2x) + 11
y − 9 = (x2 + 1)(5x − 1) + 3

Answer by unlockmath(1688)   (Show Source): You can put this solution on YOUR website!
Hello,
This one:
y + 7x = −3x(7 − 2x) + 11
Make sense?
RJ
www.math-unlock.com

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