2.01;2.006;2.14;2.45;2.405
<span>753 * 5 : 70 + 1 = 3765 : 70 + 1 = 53 55/70 + 1 = 54 55/70 = 54 11/14.</span>
1) =x-3x-5+2x-4= - 9
2) =5x-40-10-2x=3x-30
3) =y^6+y^3-2y^2-y^6+y+2y^2-y^3=y
4) =6x-x^2+30-5x= - x^2+x+30
5) =2x-x^3+8x^2-2x+16= - x^3+8x^2+16
6) =8x^7*y^5
7) =3x^2*y
8) =4x-2y^2+x^3
5/9 + 3/4 = 20/36 + 27/36 = 47/36 = 1ц. 17/36