3x x 2 )- 2x 4 0 July 8, 2019 16 32 64 128 X 3 3x 2 2x 4 0 X 2 2x 2 3x 2 6x 4 0 X 4 3x 2 2x 6 0 0 3x x 4 )+ 1 2x 2 7 0 X 4 3x 3 2x 2 6x 4 0 X 4 3x 3 4x 2 2x 0 X 2y xy 2x 2 3x 4 0 3x 5 2 x 5 0 2x 4 Int 0 prime 3x 3 x 2 2x 4 dx Integral 0 to 1 3x 3 x 2 2x 4 dx 三次 方程式 x 3 2x 2 3x 4 0
