bellaburgos01 bellaburgos01
  • 04-11-2018
  • Mathematics
contestada

Evaluate the expression for the given value of the variable(s).

-x2 - 4x; x = –3

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sqdancefan
sqdancefan sqdancefan
  • 06-06-2019

Answer:

  3

Step-by-step explanation:

There are a significant number of minus signs here. We can simplify it a bit by factoring out -x:

  = -x(x +4)

When we substitute x = -3, we get ...

  = -(-3)(-3 +4)

  = 3(1)

  = 3

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