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Mathematics 14 Online
OpenStudy (anonymous):

:) Write the quadratic function in vertex form. y = x2 + 4x + 7

hartnn (hartnn):

do you know how to complete the square?

hartnn (hartnn):

1. Take the co-efficient of x 2. Divide it by 2 3. Square it. 4. Add and subtract the answer in your expression.

OpenStudy (anonymous):

Is it y=(X+2)^2+3

hartnn (hartnn):

correct! good :)

OpenStudy (anonymous):

Thank you!

hartnn (hartnn):

welcome ^_^

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