Question

2x*3x^2?

Answer 1

\(\Large 2x\times 3x^2=(2\times 3)x^{1+2}=6x^3\)
Use: \(\Large \color{blue}{a^xa^y=a^{x+y}} \)

Answer 2

what about a^5/a

Answer 3

\(\Large \color{red}{\frac{a^x}{a^y}=a^{x-y}} \)
so, \(\Large \frac{a^5}{a} = a^{5-1}=a^4\)