Laboratorio de Matemáticas 42.
(18) (-17) (-10) =
43. (-7) (-9) (-10) =
para Ceneval. 44. (5a) (6a) (-11a) =
45. (14a) (8a) (-30a) =
46. (2ac) (-6ac) (9ac) =
Resuelve: 47. (mn) (-mn) (6mn) =
48. (3a + 10b) (-2a + 12b) =
1. (14) + (6) = 49. (3m -13) (-m + 23) =
2. (-14) + (-16) = 50. (7x + 7y) (3x – 9y + 6z) =
3. (-14) + (6) = 51. (3x – 3y) (2x + 5y) =
4. (18) + (-17) + (-10) = 52. (x – 8) (3x + 9) =
5. (-7) + (-9) + (-10) = 53. (2x + 16) (7x + 10) =
6. (5a) + (6a) + (-11a) = 54. (2a – 3b) (a + 5b) =
7. (14a) + (8a) + (-30a) = 55. (4a – 6b) (-a + 5b) =
8. (2ac) + (-6ac) + (9ac) = 56. (5a – 10c) (-6a + 7c) =
9. (mn) + (-mn) + (6mn) = 57. (11m + 13) (3m -21) =
10. (3a – 7ab + 10b) + (-2a + 7ab + 58. (x2 – 5x + 4) / (x - 1) =
12b) + (ab – 14b – 7a) = 59. (x2-7x -18) / (x + 2) =
11. (3m -10n -13)+ (-m +13n +23) = 60. (3x2+ x -24) / (x + 3) =
12. (7x + 7y) + (3x – 9y + 6z) = 61. (6x2+ 5x - 4) / (2x - 1) =
13. (3x – 3y - z) + (2x + 5y) = 62. (12x2 + 7x -10) / (4x + 5) =
14. (x + 2y – 8) + (3x – 4y + 9) = 63. (x2 + 6x + 9) / (x + 3) =
15. (2x +10y +16) + (7x – 8y +10) = 64. (x2 + 4x -32) / (x - 4) =
16. (2a – 3b - c) + (a + 5b – 3c) = 65. (2x2 + 4x -6) / (2x +6) =
17. (4a – 6b – 7c) + (-a + 5b + 3c) = 66. (12x3+10x2+8x+2) /(2x2+x+1) =
18. (5a + 9b – 10c) + (-6a + 7c) = 67. (x + 1)2 =
19. (11m –7n +13) + (3m –8n -21) = 68. (x - 2)2 =
20. (14) - (6) = 69. (x + 5)2 =
21. (-14) - (-16) = 70. (2x -1)2 =
22. (-14) - (6) = 71. (x + 3y)2 =
23. (18) - (-17) - (-10) = 72. (x – 4y)2 =
24. (-7) - (-9) - (-10) = 73. (2x + 3y)2 =
25. (5a) - (6a) - (-11a) = 74. (-x – 2y)2 =
26. (14a) - (8a) - (-30a) = 75. (mn + 5)2 =
27. (2ac) - (-6ac) - (9ac) = 76. (7m – 5n)2 =
28. (mn) - (-mn) - (6mn) = 77. (x + 1)3 =
29. (3a – 7ab + 10b) - (-2a + 7ab + 78. (x - 2)3 =
12b) - (ab – 14b – 7a) = 79. (x + 5)3 =
30. (3m -10n -13) - (-m +13n +23) = 80. (2x -1)3 =
31. (7x + 7y) - (3x – 9y + 6z) = 81. (x + 3y)3 =
32. (3x – 3y - z) - (2x + 5y) = 82. (x – 4y)3 =
33. (x + 2y – 8) - (3x – 4y + 9) = 83. (2x + 3y)3 =
34. (2x +10y + 16) - (7x –8y + 10) = 84. (-x – 2y)3 =
35. (2a – 3b - c) - (a + 5b – 3c) = 85. (mn + 5)3 =
36. (4a – 6b – 7c) - (-a + 5b + 3c) = 86. (7m – 5n)3 =
37. (5a + 9b – 10c) - (-6a + 7c) =
38. (11m –7n + 13) - (3m –8n -21) = 87. Factoriza:
39. (14) (6) = 88. 9x2 – y2 =
40. (-14) (-16) = 89. x2 – 16 =
41. (-14) (6) = 90. 1 – 25y2 =
1
91. 4x2 – 25y2 = 135. 6x2y3b =
92. 36 – x2 y2 = -2xy5a
93. x2 + 4x + 4 =
94. 16x2 - 24x + 9 = 136. 4 + 2 (3) =
95. 9x2 + 12xy + 4y2 = 137. 2(3 + 4) =
96. x2 + 6x + 8 = 138. 5(3 – 6) =
97. x2 - x -12 = 3+1
98. x2 - 4xy – 21y2 = 139. 5(3 – 2(6 + 1)) =
99. x2 - 6x + 9 = 3
100. 16x2 + 8xy + y2 = 140. 4 + 8(3 – 4) =
101. x2 + 7x + 6 = 6 – 2(2)
102. x2 - 9x + 18 = 141. -8 =
103. x2 + 2x - 15 = 4
104. x2 – 5xy – 36y2 = 142. -3 + 1 =
105. 3x2 + 4x - 4 = 4 5
143. 7 – (-3) =
106. Encuentra el valor de x: 8 4
107. 8x – 15 = 3x 144. -3 + 7 =
108. 5x – 4 = 3x - 6 5 10
109. x – 5 = 5x + 11
110. x – 4x = 5 + 2x 145. (-3/5) (10/7) =
111. 3 + 7 = 5x – 3x 146. (-16/5) – (10/3) =
112. 2x - 9 = 6x + 5x 147. (1/3) – (½) =
113. 3(4-5x) – 2(x + 4) = 4 148. (-6/7) – (5/12) =
114. 2(x - 7) = -3(2x + 1) -3 149. (-5/24) + (10/3) =
115. -9 = 7(x - 1) – 3(2x + 1) 150. (½) + (3/2) + (5/2) =
116. 3(7 -x) – 5(3 + 2x) -6 = 0 151. (8x + 7y -11) + (-5x +
117. 9 = 5x -2 + 3(2x + 1) 12y -2) =
118. 4x + 13 = 3(5x + 20) + 8 152. (3x – 8y + 9) + (-x + 3y –
119. 9(x + 2) = -6(4 – x) + 18 8) + (2x – 2y – 7) =
120. 2x + 8 = 0 153. (3x2 – 2x +4) + (2x2 + x –
121. 3(x – 2) = 20 3) =
122. 3( 2x +1) = 2x – 9 154. (3x2 +2x + 1) + (-2x2 –
123. 10x – 30 = 9(x – 2) + 3 7x + 5) =
124. 3x + 2 = 17 155. (x2 + 2x + 3) – (4x2 – 2x
125. 7x – 2 = 33 – 1) =
126. x+6=8 156. (7x3 + 4x2 +x +3) + (-8x3
127. 3(x – 4) = -36 – x + 3) =
128. 2(2x + 1) = 15 + 3x 157. (3x2 +4x -3) + (2x2 – 3x –
2
1) + (x + x + 7) =
129. Resuelve: 158. (2x2 + 6x +5) - (-2x2 – 7x
130. 10x4 y6 a b2 c d = + 2) –(4x2 + 10x + 5) =
2x2 y a6 b3 d 159. (3x3 -2x + 3) + (4x3 + 3x2
131. X0 – 2) + (-4x3 – 3x2 + x + 12) =
132. (3x3y2)3 = 160. (x4 – 3x2 + 4) + (-2x4 – x3
(a2b)3 + 3x ) + (3x2 + 2x + 1) =
2
133. (3x2y3)2 =
134. (3x2)-3 =
(4y3)-3
2
47. -6m3n3
48. -6a2 + 16ab + 120b2
49. -3m2 + 82m – 299
Respuestas:
50. 21x2 – 42xy + 42xz – 63y2 +
42yz
1. 20 51. 6x2 + 9xy – 15y2
2. -30 52. 3x2 – 15x - 72
3. -8 53. 14x2 + 132x + 160
4. -9 54. 2a2 + 7ab – 15b2
5. -26 55. -4a2 + 26ab – 30b2
6. 0 56. -30a2 + 95ac – 70c2
7. -8a 57. 33m2 – 192m - 273
8. 5ac 58. x - 4
9. 6mn 59. x - 9
10. -6a + ab + 8b 60. 3x - 8
11. 2m + 3n + 10 61. 3x + 4
12. 10x – 2y + 6z 62. 3x - 2
13. 5x + 2y – z 63. x + 3
14. 4x – 2y + 1 64. x + 8
15. 9x + 2y + 26 65. x - 1
16. 3a + 2b – 4c 66. 6x + 2
17. 3a – b – 4c 67. x2 + 2x + 1
18. –a + 9b - 3c 68. x2 – 4x + 4
19. 14m – 15n - 8 69. x2 + 10x + 25
20. 8 70. 4x2 – 4x + 1
21. 2 71. x2 + 6xy + 9y2
22. -20 72. x2 -8xy + 16y2
23. 45 73. 4x2 + 12xy + 9y2
24. 12 74. x2 + 4xy + 4y2
25. 10a 75. m2n2 + 10 mn + 25
26. 36a 76. 49m2 – 70mn +25n2
27. – ac 77. x3 + 3x2 + 3x +1
28. - 4mn 78. x3 – 6x2 + 12x - 8
29. 12a – 15ab + 12b 79. x3 + 15x2 + 75x + 125
30. 4m – 23n – 36 80. 8x3 – 12x2 + 6x - 1
31. 4x + 16y - 6z 81. x3 + 9x2y + 27xy2 + 27y3
32. x – 8y - z 82. x3 – 12x2y + 48xy2 – 64y3
33. -2x + 6y - 17 83. 8x3 + 36x2y + 54xy2 + 27y3
34. -5x + 18y + 6 84. –x3 – 6x2y – 12xy2 – 8y3
35. a – 8b + 2c 85. m3n3 + 15m2n2 + 75mn + 125
36. 5a – 11b – 10c 86. 343m3 – 735m2n + 525mn2 –
37. 11a + 9b – 17c 125m3
38. 8m + n + 34 87. NO TIENE
39. 84 88. (3x + y)(3x – y)
40. 224 89. (x + 4) (x – 4)
41. -84 90. (1 + 5y) (1 – 5y)
42. 3060 91. (2x + 5y) (2x – 5y)
43. -630 92. (6 + xy) (6 – xy)
44. -330a3 93. (x + 2) (x + 2)
45. -3360a3 94. (4x – 3) (4x – 3)
46. -108a3c3
3
95. (3x + 2y) (3x + 2y) 145. -6/7
96. (x + 4) (x + 2) 146. -98/15
97. (x -4) (x + 3) 147. -1/6
98. (x – 7) (x + 3) 148. - 107/84
99. (x – 3 ) (x – 3) 149. 25/8
100. (4x +y) (4x + y) 150. 9/2
101. (x + 6) (x + 1) 151. 3x +19y - 13
102. (x – 6) (x – 3) 152. 4x – 7y - 6
103. (x + 5) (x – 3) 153. 5x2 – x + 1
104. (x - 9) (x + 4) 154. x2 – 5x + 6
105. (3x + 2) (x – 2) 155. -3x2 + 4x + 4
106. NO TIENE 156. –x3 + 4x2 + 6
107. x = 3 157. 6x2 + 2x + 3
108. x = -1 158. 3x - 2
109. x = -4 159. 3x3 - x + 13
110. x = -1 160. – x4 – x3 + 3x2 + 2x + 5
111. x = 5
112. x = -1
113. x = 0
114. x = 1
115. x = 1
116. x = 0
117. x = 8/11
118. x = -5
119. x = -8
120. x = -4
121. x = 26/3
122. x = -3
123. x = 15
124. x = 5
125. x = 5
126. x = 2
127. x = -8
128. x = 13
129. NO TIENE
130. 5x2y5c / a5b
131. 1
132. 27x9y6 / a6b3
133. 9x4y6
134. 64y9 / 27x6
135. -3xb / y2a
136. 10
137. 14
138. -15/4
139. -15
140. -2
141. -2
142. -11/20
143. 13/8
144. 1/10