Question

Can you help me with this question? Find the sum of -2x^2 - 4x - 12 and - x^2 - 2x The answer I got was -3x^2 - 6x - 12 Just want to see if I did it correctly*Last tutor got disconnected

Answer 1

You have the following sum of expression:

(-2x^2 - 4x - 12) + (-x^2 - 2x)

In order to find the sum, simplify like terms (terms with the same variable and same exponent). Then, you have:

(-2x^2 - 4x - 12) + (-x^2 - 2x) =

-2x^2 - x^2 - 4x - 2x -12 =

-3x^2 - 6x - 12

Hence, the answer is -3x^2 - 6x - 12