Question

1. Find the sum of - x^2 + 7x – 5 and 14x – 2x^2 -8. Write your final solution in standard form!

Answer 1

EXPLANATION

To realize the correct solution of the two trinomials we must add the similar terms:

the exercise is as follows:

$\begin{gathered} (-x^2+7x-5)+(-2x^2+14x-8) \\ (-x^2-2x^2)+(7x+14x)+(-5+-8) \\ -3x^2+21x-13 \\ \text{the answer is :}-3x^2+21x-13 \end{gathered}$