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3 years ago

Evaluate the expression for the given value of the variable(s). -x^2 - 4x; x = -3

2 answers:

8 0

-(-3)^2-4(3)
Basically a - outside the parentheses means that you are to multiply by a -1. So the first pet would be 3^2 which is 9 and then 4*3=12 so, 9-12= -3

katrin2010 [14]3 years ago

4 0

Answer:

Step-by-step explanation:

It's positive 3 because you have to remember the 4 is negative.

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$7d + 12 -4d -3\\$

Explanation:

↓↓↓↓↓↓↓↓↓↓↓

First this problem it should be the group like terms.

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Then you add similar elements.

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You can also add or subtract by the numbers.

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Answer⇒⇒⇒3d+9

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