Question

помогите с уравнением

Answer 1

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