Question

xy² - x²y (para x = -1/2 y= 2/3​

Answer 1

resposta:

[-1/2.(2/3)² ]- [(-1/2)².2/3]=

[-1/2*4/9] - [1/4*2/3]=

-4/18 - 2/12=

(-8-6)/36=

-14/36= -7/18

espero te ajudado!!