TAREA 1 DE ALGEBRA :(

1- R= 4+4=8+5=+13-6=+7+6=-2-4=-6+7=+2-4=-2+10=-8
2-R= 6+4=-2-6=-8+2=-6-9=-15-8=23+2=-21+3=-18+6=-12-8=-20-12=-32-43=-
75+67=-8
3-R= (2)(-12)=-24(3)=-72(3)=-126(-2)=21+8(1)=218+3=654
4-R=(-2)(-3)=-6(1)=-6(4)=+24(5)=+120(6)=+720(-7)=-5040(-8)=+40320
5-R=-4+5=+1-6=-5+7=+2-8=-6+9=+3-12=-9+24=+5-33=-18(2)=-36(-3)=+108(4)=432(5)=+2160
6-R=(3/4)+(5/9)=27+(20/36)=47/36
7-R=(6/2)-14/4)=24-24/1 8/8=-4/8=2/4=-1/2
8-R=(3/5)(12/3)=(4/7)(6/11)=(3/5)(-12/3)=-36/15(4/7)(6/11)=24/44=6/11=36/15-16/11=396-90/165=306/165
9-R=(((4/3)(6/2)(4/4)))+(2/5)+3/4-16/7=(4/3)(6/2)=24/6=8/2=4/1+(2/5)-20+2/5=22/5+3/4=88+15/20=103/10-16/7=721/320/140=401/140
10-R=(18/5)(9/2)+25/3-6/4-7/15=(18/5)(9/2)=162/10=81/15+25/3=243+125/15+25/3=243+125/15=368/15-6/4=14/72-90/60=3385=677/38
11R=(14/3)/(23/11)+9/6(5/4)=(14/3)/(23/11)=154/69+9/16=160+621/4141(5/4)=3905/1656
12-R=(((5/25)16/2)/(25/7)(13/16)/(12/7)(13/6)/(12/7)13/2=(5/25)(16/2)=80/50=40/25/(25/7)=50996/900=2548/4500=1274/2250=657/1125+3/2=1274+33/75/2258=4649/2258