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OpenStudy (anonymous):
What is the x-coordinate of the vertex of the parabola whose equation is y=3x²+12x+5? A. x = -4 B. x = -3 C. x = -2 I think it is C, but Im not sure. Someone give me assurance. Thanks! =)
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OpenStudy (deana99):
do u need help
OpenStudy (anonymous):
yes
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