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21-03-2018
Mathematics

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PLEASE HELP QUICK
Given f(x)=x^2+14x+40
Enter the quadratic function in vertex form
F(x)=

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sqdancefan sqdancefan

21-03-2018

f(x) = x^2 +2*7x + 40
.. = (x^2 +2*7x +7^2) +(40 -7^2)
.. = (x +7)^2 -9

f(x) = (x +7)² -9

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