Question

I need help solving this

Answer 1

Step 1. Copy the problem.

(5w^5 + 6w^2 - 4) - (9w^5 - 4w^2 + 17) =

Step 2. Drop the first set of parentheses because they are unnecessary.
To drop the second set of parentheses, change every sign inside.

= 5w^5 + 6w^2 - 4 - 9w^5 + 4w^2 - 17

Combine like terms. Like terms are terms that have the same variables ad the same exponents.

= 5w^5 - 9w^5 + 6w^2 + 4w^2 - 4 - 17

= -4w^5 + 10w^2 - 21

Answer 2

(5w^5 + 6w^2 - 4) - (9w^5 - 4w^2 + 17) = 5w^5 + 6w^2 - 4 - 9w^5 + 4w^2 - 17

= -4w^5 + 10w^2 - 21

The answer is -4w^5 + 10w^2 - 21.

It is important to pay attention to the signs in the second polynomial. Be sure to change the signs accordingly since it is subtraction.

Cheers,

Bri