We are given the following problem
Recall the reciprocal rule of division method.
"Multiply the dividend by the reciprocal of the divisor"
In other words, invert the divisor and multiply with the dividend.
Therefore, the result is 3/5
We are given the following problem
As you can see, the base of the two numbers is the same (x) so we can simply add the coefficients together.
Therefore, the result is 8x