Which identity is the result of using the Pythagorean theorem to show that a triangle with side lengths X2-1, 2x, and x2+1 is a right triangle
Select the correct answer
(x2-1)2-(2x)2=(x2+1)2
(x2-1)2+(2x)2=(x2+1)2
(x2-1)2+(2x)2=-(x2+1)2
-(x2-1)2+(2x)2=(x2+1)2