Related Post: X 5 2 13 2 X 5 2 2 13 4 5 X 2 )- 2x 13 X 5 3x 2 13 2 5 X 13 2 )= 72 2 X − 5 2 Y 13 2 400 Log X 5 3x 2 13 )= 2 2 X 5 2 13 31 2 5 X 25 2 13 2x 5 13 2 X 9