Evaluate the expression for the given value of the variable(s). -x^2 - 4x; x = -3 A. 11 B. 3 C. -17 D. -1
If x = -3; -x^2 - 4x; = -(-3)^2 - 4(-3); = -9 + 12 = 3
Question
Updated 3/15/2016 1:28:20 AM
Edited by Andrew. [3/15/2016 1:28:20 AM]
f
Rating
8
If x = -3;
-x^2 - 4x;
= -(-3)^2 - 4(-3);
= -9 + 12
= 3
Confirmed by Andrew. [3/15/2016 1:28:21 AM], Rated good by Andrew.

Questions asked by the same visitor
Combine like terms. What is a simpler form of the expression? -3(-4y + 3) + 7y A. 19y – 9 B. 10y C. -19y + 3 D. -19y – 9
Question
Updated 3/14/2016 11:49:44 PM
-3(-4y + 3) + 7y;
= 12y - 9 + 7y;
= 19y - 9
Confirmed by Andrew. [3/15/2016 1:28:00 AM], Rated good by Andrew.
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