tarea del martes 10 de novienbre 2009

1) 17x418x3-36x272x=18x(x2-2x4)

2) 9x-81=9(x-9)

3) 45z90=45(z2)
4) 44x322x211x=11x(4x22x1)
5) 36x212x9=3(12x24x3)

6) 9x527x981x330x2=9x(x43x89x2)
7) 21x47x228x=7x(x3x4)
8) 64x1632x84x416=4(16x168x8x44)
9) 3x2(x2)-5x(x2)=(3x36x2)-(5x210x)
10)35(z2y)28z (z2y)=(35z70y)(28z256zy)

segunda tarea del blog respuestas de los problemas

1*: 251/20

2*: 135/56

3*: -159 x=5 ...r= -196

4*: -10099/520 x=3...r= -18731/1040

5*: 10211/120 x= -7...r=16723/120

segunda tarea 1.5

1*- ((3/5)/(16/9)x+12x-36= -507/40=-251/20

27/80(-2)+12(2)-36=
54/80+24-36=
54/80+12=100480=-507/80=251/20

2*- 13x-35+2/7-15/8=135/56

13(3)-35+2/7-15/8=
39-35+89/56=
4+89/56= 135/56

3*- 21x-16x-18+23-65+79-45x= -157

21(4)-16(5)-18+23-65+79-45(-4)=
84-80-18+23-65+79-180=
84-80=4-18=-14+23=9-65=-56+79=23-180=-157

4*-((9/8)(7/14) / (23/6))x+(1/5)x-19= -8869/460

63/112 / 26/6 (-6)+1/5(3)-19=
378/2912(-6)+1/5(3)-19=
2268/2912+1/5(3)-19=
2268/2912+3/5-19=
6804/14560-19=269836/14560= -8869/460

5*- (23/4)(65/6)+(2/3)(5)-16/5)(-7)+22= 3449/40
1495/24+10/3-16/5(-7)+22=
1495/24+2/15(-7)+22=
22473/360(-7)+22=
-17479/40+22= 3449/40

primer tarea 1,5 algebra t.mat

1 = -10080
2= -1
3= 1848
4= 131
5= 0
6= (12/5)(6/3)=72/15 (4/9)(8/11)=32/99 72/15+32/99=7128+408 / 1485=7536/1485
7=14/3+15/2=73/6 - 6/4=266/24=133/12
8= (((12/5)(15/4)=180/20 / (13/7)(16/9)=208/63 180/20 / 208/63=11340/4160 (-5)= -2835/208 + 1/2=2731/208
9=(13/22) / (43/15)=195/946 - 16/7= -13771/6622
10=(9/8)(8/6)=72/48 / 25/4)=288/1200 + (13/45)(45/2)=585/90 + 288/1200=727920/108000=337/100
11=(33/17)(45/12)=1485/204 + 3/5=2679/340 - 18/7=12633/2380 + 16/9=151777/21420 - 25/5=223385/107100

tarea

(2)5+3(-6)-(2)(4)5= -48

( (15)/3 )+2(18)-6-3-4= +28

(-2)(-4)(-5)(-3)(1)(7)= +840

(2)(-5)(11)(-2)(8)(-5)= -8800

2+3-5-6+7+28-39-65= 73

( (5)x(3) )/3 )+2-5(8)-4(-4)= -17

( (49)/7)(-6)+2-3+4(5)(-2)= -55