tater88 tater88
  • 24-08-2019
  • Mathematics
contestada

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

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Аноним Аноним
  • 24-08-2019

Answer:

-4.

Step-by-step 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.

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