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Mathematics 19 Online
OpenStudy (kimberlystanley1617):

What is the x-coordinate of the vertex of the parabola whose equation is y = 3x2 + 9x?

OpenStudy (jaedyn):

hi

OpenStudy (bonnieisflash1.0):

need some help

KjSaif (kjsaif):

are there any answer choices?

OpenStudy (akshvas):

\[3(x^{2} +3x + c)\]

OpenStudy (akshvas):

so basically you need to find a "c" which completes the square

OpenStudy (akshvas):

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