Answer:
[tex]-x^{2} + 2x - 3[/tex]
Step-by-step explanation:
(x^2 – 3x) + (–2x^2 + 5x – 3)
To get the sum of these two polynomials, remove the brackets and arrange the like terms together:
x^2 - 3x - 2x^2 + 5x - 3
x^2 - 2x^2 + 5x - 3x - 3
Now sum up the like terms to get:
-x^2 + 2x - 3
If you do not want to write x^2 in negative form, you can take '-' as a common, change the signs inside the brackets accordingly and instead write it as:
- (x^2 - 2x + 3)
