Решите уравнения:
a) 3x^2+2x-1/x+1=5
б) x/x-4 -2/x+4=32/x^2-16
в) 1/2x-x^2 +x-4/2x+x^2=2/4-x
a) 3x^2+2x-1/x+1=5
б) x/x-4 -2/x+4=32/x^2-16
в) 1/2x-x^2 +x-4/2x+x^2=2/4-x
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Answers & Comments
3x²+2x-1\ x-4=0
3x²+2x-1-4=0
3x²+2x-5=0 (квадратное уравнение)
D=4+4*3*5=64
x1=-2+8\ 2*6=0.5
x2=-2-8\2*6=-5\6