Final answer:
To simplify expression A, there are no like terms so it is already simplified. To simplify expression B, combine the w terms and simplify the coefficients.
Step-by-step explanation:
To simplify expression A, combine like terms. In this case, the like terms are the ones with the same variables and exponents:
4wx² + 7w² + 7z²
There are no like terms, so the expression is already simplified.
To simplify expression B, combine like terms:
15w - 6w + 14w²
Combine the w terms:
(15 - 6 + 14w²)w
Simplify the coefficients:
(9 + 14w²)w
The simplified expression is 9w + 14w³.