235multiply by 99+235 multiply by 1
x-4/3 - x+2/5 =
16/5+5/3
63/110+9/10
234 x 5 =
7/15*1/9
x^3+x^2-100=0
find the product of 3/8 * 12/5
(D^2-4D+4)y=8x^2e^2xsin2x