Adding/Subtracting
15x2 - 25x2
-10x2
2x2 * 3x3
6x5
(2x2)3
8x6
x5/x3
x2
a-3
1/a3
11ab + 3ab
14ab
-4x * 5x6
-20x7
(3x3y)4
81x12y4
(a6b4)/(a3b2)
a3b2
-11x-2y4
-11y4/x2
2ab - 12ac
2ab - 12ac
-6ab5 * 3a2b3
-18a3b8
25m4n12
(x12y3z20)/(xyz)
x11y2z19
14m6n-3/7m6
2/n3
5w2 + 9w - 3w2 + 2w
2w2 + 11w
9m * m3n * 6n4
54m4n5
(-3r4s2)3
-27r12s6
(-24m7n14)/(8m5n7)
-3m2n7
5x-8 * -8x-4
-40/x12
7m2n + 13mn2 - m2n
6m2n + 13mn2
-8a2b * 3b3 * -ab2
24a3b6
(1/2 a3b2c6)3
1/8 a9b6c18
-(1/4)x5yz11
(a-3b7c-12) * (a8b-3c7)
(a5b4)/c5