fodegamby fodegamby
  • 18-11-2021
  • Mathematics
contestada

Evaluate the expression 8 –
5xy^3. for x = 3 and y = – 2.

A)278
B)-112
C)-72
D)128

Respuesta :

shownubear1992
shownubear1992 shownubear1992
  • 21-11-2021

Answer:

D) 128

Step-by-step explanation:

Because we will be replacing the variables with numbers we have to that we will have to do the exponent first because of PEMDAS.

[tex]8-5(3)(-2)^3[/tex]

[tex]8-5(3)(-8)[/tex]

[tex]8-15(-8)[/tex]

[tex]8-(-120)[/tex]

[tex]8+120=128[/tex]

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