3x 4 4x 3 12x 2 5 July 8, 2019 16 32 64 128 3x 4 4x 3 12x 2 5 0 F x )= 3x 4 4x 3 12x 2 5 X 5 3x 4 4x 3 2x 2 12x 16 Y 3x 4 4x 3 12x 2 5 Fx 3x 4 4x 3 12x 2 5 Find the intervals in which the function 3x 4 4x 3 12x 2 5 Y 3x 4 4x 3 12x 2 5 極 値