3ax3y / 4ax2yz
a,x,y,z =0
(2a - 2b)/(3a - 2b) - (2a - 5b)/(3a - 2b)
3b / (3a - 2b); a = 2/3b
(3x - 9) / (x2 - 4x + 4) . (x - 2) / (x - 3)
3 / (x - 2); x = 2, 3
15ax3y3 / 3a4x2yz
5xy2 /a3z; a,x,y,z = 0
(5xy - 7av) / (3x - 3y)
x = y
x/3y + 2y/x - 1/xy
(x2 + 6y2 - 3) x,y= 0
(a + b) / (a - b) : (3a2 + 3ab) / (9a2 - 9b2)
3(a + b) /a; a = +-b, 0
(9xy - 9axv) / (3x2 - 3xy)
3(y - av)/(x-y); x= 0,y
(3ab - 5xy) / (a2 - b2)
a = +- b
(3a)/(a - 2) + (2a-1)/(a2 - 4)
(3a2 + 8a - 1)/(a2 - 4); a = +- 2
(x2 - 9) / (x2 + 2x - 15)
(x + 3) / (x + 5); x = 3, -5
(5ax - 5bx) / (a2 - b2)
5x/(a+b) ; a= +-b
3xy / (4x2 - 20xy + 25y2)
x = 2,5 y
-5/(9a - 9) + (3a +3)/(a2 - a)
(22a + 27) / (9a2 - 9a); a= 0, 1
(x3y + y4) / (x2 -xy + y2)
y . (x + y)
(x2 - 10x + 25)/(x2 - x - 20)
(x - 5)/(x + 4) ; x= 5;-4
5xy -10 / 3a - 3b - ax +bx
a =b ; x = 3
(a + 3)/\(a - 3) + (-a)/(a + 3) + 2a/(a2 - 9)
(11a + 9)/(a2 - 9); a= +-3
(8x3 + 1) / (4x2 - 1)(4x2 - 2x + 1)
1 / (2x-1); x = +-1/2;
(x2 + 4x + 4)/(x2 + 5x + 6)
(x + 2)/(x + 3) ; x= -2;-3