17 spaces. Just jump from each space to the next until you get to (-5,-4). :) hope it helps.
16xy, 24x^2y^2 are two expressions with gcf of 8xy.
If you take the square root of a number squared number then they cancel each other out and the number stays the same i.e. √[(4)^2] would equal 4.
In this problem the square root and numbered squared cancel out to leave the problem as -2a.
The solution of this problem is -2a
