So first you need to add 4 to each side to get (x+5)^2=16. Next you need to take the square root of each side to get √(x+5)^2=+-√16. After that simplify to get x+5=+-4. Now subtract 5from both sides to look like x=-5+-4. Now just do x=-5+4 and x=-5-4 then solve to get x=-1 and x=-9.
Use the Pythagorean theorem:
The length of the hypotenuse is 6√2 units.
X + 6 = 33
x = 27
hope this helps :D
It has to be (8, 9) because that would put the 4th corner above (8, 7) and right of (2, 9).
