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Wilson Darío Henao Giraldo

Docentes
Ing. Diego Alejandro guerrero Marín
Ing. Robert Eugenio miranda Sánchez

Inedupla
Concepción Antioquia
Informática- matemáticas
Grado: octavo
2012

1. (x+4)2=x2+8x+16
2. (x-4)2=x2-8x+16
3. (-x+4)2= -x2-8x+16
4. (-x-4)2= -x2+8x-16
5. ¿es (x+a)2=(-x-a)2?
R/ si porque: (x+a)2=x2+ax2+a26. ¿es (x+a)2 =(-x+a)2?
R/ si porque son signos iguales: (x-a)2=x2-2xa-a2 y (-x+a)2= x2
7. (x-12)2=x2-2x4-14
8. (x3+12)2= x28+2x3 × 12+(12)2=x23+ 2x12+14
9. (x3-1)2=x6-2x3-1
10.(x3+0,4)2=x6+0,8+0,16
11. (a12+3)2= a24+6a12+a
12. (2y7-4)2=2y14-16y7-16
13. 6+5v(6t)2-(5v)2=36t-25v
14. (ax+b)2=2ax+2b+2bax
15. (-y23+3y)2= -y43-6y33+3y2
16. (x+4)2x-y)2=(x2+2xy+y2 (x2-2xy+y2)=2x4+2y4
17. (x+y)4= x+y2x+y2=x4+4x3+6x2y2+4xy3+y4
18. (a-b-c)2 =a2-b2-c2
19. (3a+2b+c)2=9a2+4b2+c2
20. (x2+y2+z2)2=x2+y4+z4
21. (a+b+c+d)2=a2+ b2+ c2 +d2
22.(x-0,3)2=x2-2(x. 0,3)-o,32= x2-0,6x-0,9
23. x+ax+a2(x2+2(9x)+a2x2-2ax-a2=(x2+2ax+a2)(x2-2ax-a2=2x2
24. (x+a)2(x-a)2=2x32=2x4
25. x+8x-8=x2- 82=x2-64
26. x-8x+8=x3-64
27.-x+8x+8=-x2+64
28. -x-8-x+8=x2-64
29. x-13x+13=x2-(13)2=x2-19
30. x3+14x3-14=x3-14=x9-(116)
31. (x2-1)(x2-1)=x4+1
32. (x3+0,4)(x3-0,4)=x6-0,16
33. (912-3)(912+3)=(912)-(3)=924-9
34.(277-4)(277+4)=2714-16
35. (x2+y2)(x2-y2)=x4-y4
36. (x3-y3)(x3+y3)=x6-y6
37. (x6+y6)(x6-y6)=x12-y12
38. (xn+yn)(xn-yn)=(x-y)n
39. (an+p)(an-p)=(a)(a)-p2=a2-p2
40. (p-q)2=p2-2pq+q2
41. ( a-6)2=(a)2-2 (a)(6)2+(6)2= a2-12a+36
42. ( o,1 a2-0,2 abc)2=11a2 10-2abc102
43. ( 2m-1)2=(2 m )2-2 2m (1)2=4m2- 4m+1
44. ( x+ 5)2 =(x)2 +3 x5+(5)2=x2+15x +25
45. ( x+9)2=(x)2 +2x9+(9)2=x2 +18x+81
46. ( 3a+ b)2=(3a)2+23ab+ b2=9a2+6 ab+b2
47. (9×2-7 y2)2=(9×2 )2-2 9x27y2+(7 y2)2=81×4-126 x2y2+49 y4
48. (x+ y)2= x2+2 xy+ y2 = x2+2 xy+ y 2
49. (3a-5...