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OpenStudy (anonymous):
Which of the following equations is quadratic? x(x2 + 1) = 0 5(4x + 2) = 3 (x + 3)(x + 4) = 5
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OpenStudy (anonymous):
only the last one, because if you multiply out you will have the highest power being two \[(x+3)(x+4+=5\\ x^2+7x+12=5\]
OpenStudy (anonymous):
thanks!
OpenStudy (anonymous):
yw
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