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  • 23-10-2019
  • Mathematics
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What is 4x(x/3−2) when x = −3?

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zrh2sfo
zrh2sfo zrh2sfo
  • 23-10-2019

Answer:

36

Step-by-step explanation:

Evaluate 4 x (x/3 - 2) where x = -3:

4 x (x/3 - 2) = -3×4 ((-3)/3 - 2)

The gcd of -3 and 3 is 3, so (-3)/3 = (3 (-1))/(3×1) = 3/3×-1 = -1:

-3×4 (-1 - 2)

-1 - 2 = -(1 + 2):

-3×4×-(1 + 2)

1 + 2 = 3:

-3×4 (-3)

4 (-3) = -12:

-3-12

-12 (-3) = 36:

Answer:  36

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