Related Post: 5 X 3 10 X 4 5 10 3 X 4 5 X 1 5 5 4 X 11 10 3 4 X 12 5 4x 5 3 10 X 5 X 4 5 2 X 4 )= 5 X 3 )+ 10 X 6 5 X 3 4 4x 5 10 1 5 X 4 5 X 10 3 As A Fraction F X )= X 5 5x 4 5x 3 10 Has A Local Maximum At 5(x+3) Answer 5 X 5 Rule