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

-x2 - 4x; x = –3

Question 8 options:

11

–1

–17

3

Respuesta :

MarkV
Hi there! The answer is 3, so the last option is correct.

In order to ealuate the expression for the given value of the variable(s), we must plug in the value of x into the equation.

-x2 - 4x; x = –3
We get the following

[tex] - ( - 3) {}^{2} - 4 \times - 3 = [/tex]
Use PEMDAS, so work out the exponents first.

[tex] - 9 - 4 \times - 3[/tex]
Now multiply and remember that a negative times a negatives gives you a positive outcome.

[tex] - 9 + 12 = [/tex]
Add.

[tex]3[/tex]
Therefore, the answer is 3.
~ Hope this helps you!