Question

Simplify: 3y^4 - 9y^5 +15y^4 + 3y^6
Please help, I have NO idea how to even start this.

Answer 1

Combine like terms

ex:

3y^4 + 15y^4 = 18y^4

since 3+15 = 18

Answer 2

after you combine like terms:
3y^6 - 9y^5 + 18y^4
you can factor out a 3y^4

Answer 3

\[3y ^{6}-9y ^{5}+18y ^{4}\]

Answer 4

so then you have on the outside 3y^4( y^2 - 3y + 6)