Simplify the given expression.
(–3x2 – 9x + 17) – (15x2 + 20x – 4)

Step-by-step explanation:

We need to group terms according to the power of the variable x

So the math operation here is this:

Wich can not be simplified much longer

For this case we must simplify the following expression:

We must bear in mind that by law of signs of multiplication it is fulfilled that:

Then, rewriting:

We add similar terms:

We have that equal signs are added and the same sign is placed, while different signs are subtracted and the sign of the major is placed, then:

understand that i don't know the answers

will someone answer his question

we'll this would mean that the dunk tank and the bounce house are the same for 20 hours because the 2 represents that the two activities, and the 20 represents the amount of hours they both are. so with this said, it means that the answer is c. the costs for a dunk tank and bounce house are the same for 20 hours.

c.the costs for a dunk tank and bounce house are the same for 20 hours.

hope this .