add polynomials
(3x+4)+(2x+2)
5x+6
(3x-9)-(6x+4)
-3x-13
(2x-2)(4x-9)
4x2-17x-18
(16x3+2x2+8x)/4x3
4+1/2x+2/x2
(6x2 -9)+(5x2+7)
11x2-2
(4x2-5)-(3x+8)
4x2-3x-13
(7x3+10)(2x3-8)
14x6+76x3-80
(9x4+3x3+9x2)/9x
x3+x2/3+x
-4x4-6x2+3
(-5x4+8x-10)-(3x+8)
5x4+5x-18
(7x3-10)(9x4-9)
63x7-63x3-90x4+90
(10x2+85x-39)/(X+9)
10X-5+6/X+9
(4x6-7x-8)+(5x-9)
4x6-2x-15
(6x5-7x2-10)-(4x2+10)
6x5-7x2
(7x6-9)(5x2+8x)
35x8+56x6-45x2-72x
(3B2+17B-89)/(B+9)
3B-10+1/B+9
(8x4+5x2-10)+(6x3-7x+12)
8x4+6x3+5x2+2
(9x4+8x2-9)-(7x3-4x2+20)
9x4-7x3+4x2-29
(2x3-6x-10)(3x-8)
6x4-16x3-18x2+18x+80
(k3+12k2+28k+70)/(k+10)
k2+2k+8-10/k+10