Question

`{x}^(3) {y}^(4) * {x}^(5) {y}^( - 5)`
pls solve this problem​

Answer 1

`x^3 y^4 \cdot x^5 y^(-5)\\\\=x^(5+3) \cdot y^(4-5)~~~~~~~~~~~~~~~~~~~~~~~;[a^m \cdot a^n = a^(m+n)]\\\\=x^8 y^(-1)\\\\=(x^8)/(y)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~;\left[a^(-n) = \frac 1{a^n},~~~ a \\eq 0\right]`