Kathryn014
Kathryn014
20-04-2017
Mathematics
contestada
put y=(x+3) (x-7) into the form a(x-h)^2 +k.
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j4cek
j4cek
20-04-2017
[tex]y=(x+3)(x-7)=x^2-7x+3x-21=x^2-4x-21=\\x^2-4x+4-4-21=\boxed{(x-2)^2-25}[/tex]
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