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OpenStudy (anonymous):
After being rearranged and simplified, which of the following equations could be solved using the quadratic formula? (check all that apply) a. -x^3+4x+7=2x^2-9 b. 5x+4=3x^3-2 c. 3x^2+9x+3x^2=14+x-1 d. x^2+x+2=0
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OpenStudy (anonymous):
quadratic solves expressions containing x^2 terms but not higher. So last 2.
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