Question

Please help meeeeee simplify the expression

Answer 1

Answer:

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

Step-by-step 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.  $(5x^4)(4x^5)\\20x^{4+5}\\20x^9$