Question

PLEASE HELP ME FAST!! MANY POINTS AND BRAINLIEST. Determine the value of x for the triangle. Show work.

Answer 1

13^2=x^2+(x+7)^2
169=x2+x2+14x+49
2x2+14x=120
2x2+14x-120=0
X2+7x-60=0
X=5