X2+3x-6=0
A=1
B=3
C=-6
D=B2-4AC=32-4*1*-6=33
X1= (-B+√D)/(2A)=(-3+√33)/(2*6)=1,372281323
X2= (-B-√D)/(2A)=(-3-√33)/(2*6)=-4,372281323
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(x + 3)(3x - 2)
(x - 6)(x + 9)
That factors to (x - 3)(x + 6)
6x^2 -13x+6 = (3x-2)(2x-3) when factorized
(x - 3)(x^2 + 6)