Question

Adding Polynomial Expressions. (

SIMPLIFY
#1
(ab^2+13b-9)+(6-4a+3ab^2)+(a+7b)

#2
(9x^3-2x^2-x)+(3x)+x^3-4)+(x^2-3x)

​

Answer 1

#1

4ab^2 + 20b - 3a -3

#2

10x^3 - x^2 - x - 4

Explanation:

Combine like terms.

Combine ab, b, a terms for #1

Combine x^3, x^2, x terms for #2

Answer 2

Answer: 4ab^2 +20b - 3 -3a

Explanation: