Question 930505
*[illustration Pythagorean_theorem_3.jpg].
(3x + 13)^2 + x^2 = (3x+14)^2
3x^2 + 78x +169 + x^2 = 3x^2 + 84x + 196
x^2 - 6x - 27 = 0
(x+3)(x-9) = 0
x = 9
hypotenuse = 41
....checking...
40^2 + 9^2 = 41^2