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(x -3)= -3x
(x 2)= 2x
(x-3)(x+2)
X1=3
X2=-2
b) 6x^2+11x+3
(3x 1)=2x
(2x 3)=9x
(3x+1)(2x+3)
X1=-1/3
X2=-3/2
c) 7x^2-9x+2
(7x -2)= -2x
(x -1)= -7x
(7x-2)(x-1)
X1=2/7
X2=1
d) 2x^2-15x+9
Por la formula general
X1= 32.23
X2= -2.23
e) 6x^2-5x-6
(3x 2)= 4x
(2x -3)= -9x
(3x+2)(2x-3)
X1= -2/3
X2= 3/2