reduktion
2a+(4a-8)
6a-8
(5a+5a)(10)
100a
(5*10)+50
100
2b+(2a-3b)
-b+2a
(3a+7a)−(5a+7b)
15a-7b
(12b+9b)-10a
21b-10a
2a*(4b+8b)
24ab
-(6a-2)+7
-6a+9
(2a+5b)*6-10
12a+30b+4
3*(4b+4a-2)
12b+12a-6
10-(7b+4a)+6
7b+4a+16
(2a+15a)*6+50
102a+50
11*(70+3)
803
(2a-3b)(a+4b)-(a-b)(a+b)
a2+5ab-13b2
(4a+9a)*5-20
65a-20