Respuesta :

RoryGallagher1973

(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

mathstudent55
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

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