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Mathematics 12 Online
OpenStudy (anonymous):

Solve. 3x2 = -15x + 21

OpenStudy (anonymous):

bring everything to the left side

OpenStudy (anonymous):

3x^2+15x-21=0

OpenStudy (anonymous):

divide both sides by 3

OpenStudy (anonymous):

x^2+5x-7=0

OpenStudy (anonymous):

I got to here but what do I do next

OpenStudy (anonymous):

plug into the quadratic equation if u can't factor

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