Respostas

2014-01-15T02:50:39-02:00
3x²-7x-6=2x²+6x
3x²-2x²-7x-6x-6=0
x²-13x-6=0
a=1 b= -13 c= -6
Δ= (-13)²-4·1·(-6)
Δ=169 +24
Δ=193

x= 13+/-
√193/2

x'= 13+√193/2

x''= 13-√193/2
1 2 1