Question

x+V10x+6=9
quero um passo a passo por favor

Answer 1

$x+ \sqrt{10}x+6=9\\ \\ x+\sqrt{10}x=9-6\\ \\ x(1+\sqrt{10})=3\\ \\ x=\frac{3}{1+\sqrt{10}}\\ \\ x=\frac{3}{1+\sqrt{10}}.\frac{1-\sqrt{10}}{1-\sqrt{10}} =\frac{3(1-\sqrt{10})}{1-10}=-\frac{1-\sqrt{10}}{3}$