Помогите прошу! [latex] frac{5}{2x+1}+ frac{x}{2x-1} = frac{14}{1-4 x^{2} } [/latex]Математика

[latex] frac{5}{2x+1} + frac{x}{2x-1} = frac{14}{1-4 x^{2} } [/latex][latex] frac{5(2x-1)+x(2x+1)}{(2x+1)(2x-1)} = frac{14}{1-4 x^{2} } [/latex][latex] frac{5(2x-1)+x(2x+1)}{4 x^{2} -1} = frac{14}{1-4 x^{2} } [/latex][latex] frac{-(5(2x-1)+x(2x+1))}{1-4 x^{2} } = frac{14}{1-4 x^{2} } [/latex][latex]-(5(2x-1)+x(2x+1)) = 14[/latex]10x-5+2x²+x=-142x²+11x+9=0D=11²-4*2*9=121-72=49x₁=(-11+7)/4=-1x₂=(-11-7)/4=-18/4=-4.5