Question

Решите уравнение х - 6/х = -1

Answer 1

$x- frac{6}{x} =-1/*x neq 0 \ x^{2} -6=-x \ x^{2} +x-6=0 \ D=1+24=25 \ sqrt{D} =5 \ x_{1} = frac{-1+5}{2} = frac{4}{2} =2 \ x_{2} = frac{-1-5}{2} = frac{-6}{2} =-3$