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06-11-2016
Mathematics

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express 9x^2-12x+5 in the form (ax+b)^2+c

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Iknowit Iknowit

06-11-2016

9x²-12x+5=(3x)²-2*3x*2+2²+1=(3x+2)²+1
a=3
b=2
c=1

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