150/1.5
x^2 D^2 - 3x D + 5y = sin(log x) by cauch'y euler method
1500/1.5
find xf ix+5=-4x+200
1.5/1500
(− 6) • [(− 10) ÷ (− 5) − (− 5)] -(-2)
3/4 + 4 4/12
x^2 - 3x + 10 = 2x + 4
find perfect cube
125/8 - 9/4
