Question

Math question see if you're able to help!!!*plz explain*

Answer 1

I'm going to do this the long way, finding everything, but there are shorter methods if all you are trying to do is order n^2. I'm also going to start by removing the brackets in each question.

A

- 5n^3 + 5n^2 + 5 + n^3 - n^2

-4n^3 + 4n^2 + 5

B

n^3 + 2n^2 - n - 2 - (n^3 - 3n^2)

n^3 + 3n^2 - n - 3 - n^3 + 3n^2

5n^2 - n - 2

C

n^2(n - 4)+ 5n^3 - 6

n^3 - 4n^2 + 5n^3 - 6

6n^3 - 4n^2 - 6

D

2n^3 - 4n^2 - 2n + 3n^2

2n^3 - n^2 - 2n

The correct order is bad C or B A D C.

I don't know what to put into the boxes. You might have to ask about that.

The numbers in front of the coefficients for x^2 are

B = 5

A = 4

D = - 1

C = - 4