Answer:
251451
Step-by-step explanation:
6
=4!/(4-2)!2!
=4x3x2x1/2x2
=12/2
=6
see below
The Pythagorean theorem is for right triangles. It uses the two legs and the hypotenuse
a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse
x= -1 and x =0
all work is shown and pictured