Question

How do you simplify `y^60 + y^45 y ^15`?

Answer 1

`y^60+y^45y^15=2y^60`

Explanation:

In general `b^m*b^n = b^(m+n)`
So
`color(white)("XXX")y^45*y^15=y^60`
and
`color(white)("XXX")y^60+y^60 = 2y^60`