Question

Решите уравнения:
7x^2 - 1 - (2x+1)(3x-2)=x^2
____________________
4x(2x+2) - (8x-1)(x+6)=3

Answer 1

1) 6х^2-1-(6х^2+3х-4х-2)=0
-1+Х+2=0
Х=-1

2) 8х^2+8х-(8х^2+48х-Х-6)-3=0
8х-47х+3=0
-39х=-3
Х=1/13