Question

resolver a equação 2ײ -5×=0,pela forma bhaskara​

Answer 1

Resposta:

$x=\frac{5}{2},\:x=0$

Explicação passo a passo:

$2x^2-5x=0$

$x_{1,\:2}=\frac{-\left(-5\right)\pm \sqrt{\left(-5\right)^2-4\times \:2\times \:0}}{2\times \:2}$

$x_{1,\:2}=\frac{-\left(-5\right)\pm \:5}{2\times \:2}$

$x_1=\frac{-\left(-5\right)+5}{2\times \:2},\:x_2=\frac{-\left(-5\right)-5}{2\times \:2}$

$x=\frac{5}{2},\:x=0$