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Complete the square to re-write the Quadratic function in vertex form

Complete the square to re-write the Quadratic function in vertex form-example-1

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Explanation:

y = (x^2+4x) -2 take 1/2 of the x coefficient (4) square it and add it and subtract it

y = ( x^2 + 4x +4 ) -4 -3 reduce everything

y = ( x+2)^2 - 7 Done.

User Jason Miller
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