This might sound silly, but how would you factorize the following: 5x 2 +17x+12
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5x²+17x+12=0
5x²+15x+4x+12=0
5x(x+3)+4(x+3)=0
(x+3)(5x+4)=0
(x+3)=0
x=-3 or
(5x+4)=0
x=-4/5
5x²+15x+4x+12=0
5x(x+3)+4(x+3)=0
(x+3)(5x+4)=0
(x+3)=0
x=-3 or
(5x+4)=0
x=-4/5
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