Question

Please help meeeeee simplify the expression

Answer 1

`y^6`,
`12n^6`,
`20x^9`

Explanation:

When you multiply like variables with each other, you add their powers together.

So...

1.
`(y^2)(y)(y^3)\\y^(2+1+3) \\y^6`

2.
`(3n^2)(4n^4)\\12n^(2+4)\\12n^6`

3.
`(5x^4)(4x^5)\\20x^(4+5)\\20x^9`