Resolva as equações de segundo grau:
A) X²+5x+6=0
B) X²-23+120=0
C) 5x²+13x-6=0
D) 4x²+20x+25=0
E) 3x²+4x-4=0
F) 5x²-11x+2=0
A) X²+5x+6=0
B) X²-23+120=0
C) 5x²+13x-6=0
D) 4x²+20x+25=0
E) 3x²+4x-4=0
F) 5x²-11x+2=0
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A) X = -3 e X = -2
B) X = 5 e X = -24
C) X = -2 e X = -3/5
D) X = -5 e X = -1
E) X = -2 e X = -2/3
F) X = 1 e X = 2