Question

See attachment.

Answer 1

O that was comforting.

Answer 2

x^2 + (x+28)^2 = 68^2

Answer 3

68^2 = x^2 + (x+28)^2

Answer 4

x^2 +(x+28)^2 = 68^2
simplify
x^2 +28X -1920 = 0
-28 +-sqrt(784 -4(1)(-1920))/(2)
gives x = (-28 +-92)/2
take teh positive root
x = 32
sanity
32^2 + (32+28)^2 = 4624 = 68^2