there is a problem with this question as it is given
let X = short leg, then the length of the longer leg will be 4X+16, and the hypotenuse will be 4X+17
the Pythagorean theorem requires that a2 + b2 = c2
let us say that X = 10, then 102 + 562 must equal 572, but 100 +3136 does NOT equal 3249
please review the original wording