bellaburgos01 bellaburgos01

04-11-2018
Mathematics

contestada

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

-x2 - 4x; x = –3

Respuesta :

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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