How do you simplify #-sqrt(144)#?
The negative is really -1 times the square root, so do the square root first, multiply by -1 and get
Let's start with the original:
The negative sign is really a
We can now take the square root of 144:
I think this question hinged on the fact that "you can't take the square root of a negative number" (which in a higher level class you will learn that you can). A question with the negative in the square root would look like this:
And just for fun let's show what you do in this case:
And in that advanced class you will learn that