Question 268670
The ladder forms a right triangle with the wall'
So, x^2+(x+14)^2 = 26^2
    x^2+x^2+28x+196 = 676
    2x^2+28x-480=0
x^2+14x-240=0
(x+24)(x-10)=0
x=-24 or x=10
x cannot be negative
So, x=10