Question

quanto dá 2x - x² : 2​

Answer 1

$2x - {x }^{2} \div 2$

$2x \times \frac{1}{2} \times ^{2}$

$x \times (2 \ - \frac{1}{2} x)$

$x \times \frac{1}{2 } \times (4 - x)$

$\frac{1}{2} x \times (4 - x)$

Espero ter ajudado