First you do the parentheses (2-7)= -5 and (-5-10)= -15
So it’s going to be the square root of -5 to the power of 2 + -15 to the power of 2.
Then you have to do -5 to the power of 2 which will give -25. Then you have to do -15 to the power of 2 which will give -225.
So it’s going to be the square root of -25 + -225. Then you will have to do -25 + -225= -250.
So it’s going to be the square root of -250 which will give -15,81.
