Question

efetue as equações 13x²-26x=0

Answer 1

$13 x^{2} -26x=0\to \\\\\\ x(13x-26)=0\to \\\\\\ x=0\\\\ 13x-26=0\to 13x=26\to x= \frac{26}{13} \to x=2\\\\\\ S= \left \{ 0;2\left \}$