Question

Determine o valor numérico de :

Answer 1

a) $x^{2}$ p/ x = - 4. $(- 4)^{2} =$ (- 4) . (- 4) = 16 b) x - y = p/ x = $\frac{5}{2} =$ e y = $\frac{8}{5}$ $\frac{5}{2} - \frac{8}{5} =$ $\frac{25 - 16}{10} =$ $\frac{9}{10}$ Espero ter ajudado