What is the best way to answer this?

When you take a normal square root, that's also the same is raising to the 1/2 power. So you need the 5th root of 15, or 15^(1/5) = 1.71877...

BUT, multiplication comes first, order of operations

so 2.24 * 2 = 4.48

Add 15^(1/5) to 4.48 and keep as many decimals as you need

put like terms together.orremember that the 45 becomes negative when moved to the other side.orthe minuses cancel out.

That they are numbers and related to each other.