Question

2x^2-5xy-y^3
If x=-3 and y=-2
Using PEMDAS

Answer 1

-4.

Explanation:

2x^2 - 5xy - y^3

= 2(-3)^2 - 5(-3)(-2) - (-2)^3

= 2*9 - 5(-3)(-2) - (-8)

= 18 -5*6+ 8

= 18 - 30 + 8

= -12 + 8

= -4.