SOLUTION: please solve the quadratic equation {{{(x-3)^2+3x^2-5x=12}}}

SOLUTION: please solve the quadratic equation {{{(x-3)^2+3x^2-5x=12}}}

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Question 331444: please solve the quadratic equation

Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!

x^2-6x+9+3x^2-5x-12=0
4x^2-11x-3=0
4x^2-12x+x-3=0
4x(x-3)+1(x-3)=0
(x-3)(4x+1)=0
x=3 OR x=-1/4
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