Question

How do you simplify the expression `(4a^2)/a`?

Answer 1

`(4a^2)/a=4a`

Explanation:

In our calculation there are two letters `a`, two same
variables. Because of that we can use the rule and just simply put numbers and variables from our calculation to equation

`x^a/x^b=x^a-x^b` `=>` `4a^2-a^1`

Now you just subtract `2-1` which is 1. So you keep one `a`. That means `4a^2-a^1=4a`

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Rule of one: `a^1` and `a` are same, we usually don't write `^1`.
`a^1=a`