arelyhernandez13
arelyhernandez13 arelyhernandez13
  • 29-08-2018
  • Mathematics
contestada

I need help on #2
If a=-1/2,b=4,and d=-3, what is the value of 3ab^2-d^3/a

I need help on 2 If a12b4and d3 what is the value of 3ab2d3a class=

Respuesta :

bts22
bts22 bts22
  • 29-08-2018

First, you should substitute the variables for their value in the expression.

= [ 3 (-0.5) (4)² - (-3) ] / (-0.5)

= [ 3 (-0.5) (4)² + 3 ] / (-0.5)

= [ 3 (-0.5) (16) + 3 ] / (-0.5)

= [ (-1.5) (16) + 3 ] / (-0.5)

= [ (-1.5) (16) + 3 ] / (-0.5)

= (-24+3) / (-0.5)

= -21 / -0.5

= 42

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