Question 863037
(2*(x+15))^2+(2x)^2=150^2
4*(2x^2+30 x+225) = 22500
(2x^2+30x+225) =5625
2x^2+30x+-5400=0
x^2+15x-2700=0
x=45
x+15=60
check
3,4,5 right triangle
120^2+90^2=150^2