Question

O valor numérico de x²y + x / x-y , para x = -3 e y = 7, é: (1,0) *
6
3
-6
3/2
????????

Answer 1

Boa Tarde !!!

$\cfrac{x^{2} y+x}{x-y} \\\\\\Trocarei\ x\ por\ -3\ e\ y\ por\ 7:\\\\\\\cfrac{(-3)^2.7 + (-3)}{-3 - 7} \\\\\\\cfrac{9.7 - 3}{-10} \\\\\\\cfrac{60}{-10} \\\\\\Resposta = -6$

Espero ter ajudado :-)

Att: LDC