y=7x^2-28x+3(adsbygoogle = window.adsbygoogle || []).push({});

so far ive got...

y-7(x^2-4x)+3

then i divided 4/2=2

and then did 2^2 = 4

sooo

y=7(x^2-4x+4-4)+3

and thats as far as i can get

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# Homework Help: Completing the square

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