(2x^2+3x-4)+(x^2-x-2)

Question

Find the sum and express it in simplest for.

Answer 1

(2x^2+3x-4)+(x^2-x-2)

 

Since there is no multiplication by any

quantity outside of the parenthesis in this,

all you actually have is just an addition

problem.  The parenthesis are not necessary.

 

(2x^2+3x-4)+(x^2-x-2) = 2x²+3x-4+x²-x-2

 

Let's rearrange similar terms next to each other

to make this simpler to see:

 

2x² + x² + 3x - x - 4 -2

 

Adding like terms we have

3x² + 2x -6