Question

Помогите решить даю 30 баллов

Answer 1

$2x^2-12x-1=2(1-2x) \ 2x^2-12x-1=2-4x \ 2x^2-12x-1-2+4x=0 \ 2x^2-8x-3=0 \ D_1=(-4)^2-2cdot(-3)=16+6=22 \ x_1= frac{4+ sqrt{22} }{2} \ x_2= frac{4- sqrt{22} }{2}$

Answer 2

2x^2-12x-1=2(1-2x)
\
2x^2-12x-1=2-4x
\
2x^2-12x-1-2+4x=0
\
2x^2-8x-3=0
\
D_1=(-4)^2-2cdot(-3)=16+6=22
\
x_1= frac{4+ sqrt{22} }{2} 
\
x_2= frac{4- sqrt{22} }{2}