Question

Add the following polynomials:
3a3 + 8a - 6 and 4a2 - 9a + 11

Answer 1

`3a^3+4a^2-1a+5`

Explanation:

Add the following polynomials:

`3a^3 + 8a - 6 \ and\  4a^2 - 9a + 11`

To add the polynomials we combine like terms

`3a^3 + 8a - 6 + 4a^2 - 9a + 11`

The terms with same variables are like terms

8a and -9a are like terms

8a - 9a = -1a

-6 +11= 5

`3a^3 + 8a - 6 + 4a^2 - 9a + 11=3a^3+4a^2-1a+5`

Answer 2

3a^3+8a-6
+4a^2-9a+11
=3a^3+4a^2-a+5