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【化简求值题及答案100道】计算100道化简50道化简求值50道解方程100道最好带答案的

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解决时间 2021-02-19 00:05
  • 提问者网友:浩歌待明月
  • 2021-02-18 09:05
【化简求值题及答案100道】计算100道化简50道化简求值50道解方程100道最好带答案的
最佳答案
  • 五星知识达人网友:风格不统一
  • 2021-02-18 10:10
【答案】 最佳答案3.3ab-4AB 8 AB-7AB + AB = ______.
  
   4.7倍 - (5X-5Y)-Y = ______.
  
   5.23a3bc2-15ab2c +8 ABC-24a3bc2-8abc = ______.
  
   6. -7X2 +6 x +13 X2-4X-5×2 = ______.
  
   7.2y +(-2Y +5) - (1411 +2)= ______.
  
   11. (2×2-3XY 4 Y2)+(X2 +2 XY-3Y2)= ______.
  
   12.2A-(3A-2B +2)+(3A-4B-1)= ______.
  
   13. - 组件6x2-7X2 +15 X2-2×2 = ______.
  
   14.2-(X +3 Y) - (-XY) - (XY)= ______.
  
   16.2倍+2 Y-[3X-2(X-Y)] = ______.
  
   17.5-(1-X)-1 - (X-1)= ______.
  
   18. ()+(4XY 7 X2-Y2)= 10X2-XY.
  
   19. (4xy2-2x2y) - ()= X3-2x2y +4 XY2 + Y3.
  
   21.已知A = X3-2×2 + X-4,B = 2×3-5X 3,计算A + B = ______.
  
   22.已知A = X3-2×2 + X-4,B = 2×3-5X 3,计算AB = ______.
  
   23.若a = -0.2,B = 0.5,代数表达式 - (| A2B | - | AB2 |)的______值.
  
   25.一个多项式减去3M4-M3-2M 5太-2M4-3立方米-2平方米-1,则该多项式等于______.
  
   26. - (2×2-Y2) - [2Y2-(X2 +2 XY)] = ______.
  
   27.如果-3a3b2和5AX-1进行2相类似的项目,则x = ______,Y = ______.
  
   28. (-Y +6 +3 Y4-Y3) - (2Y2,3Y3 + Y4-7)= ______.
  
   29.的代数4×简单化[7X2-5X-3(1-2X + X2)]结果是______.
  
   30.2a-B2 + C-D3 = 2A +()-D3 = 2A-D3-()= C-().
  
   31.3a-(2A-3B)+3(A-2B)-B = ______.
  
   32.代数的x简化[Y-2X-(X + Y)]等于______.
  
   33. [5A2 +()A-7] + [()A2-4A +()] = A2 +2 +1.
  
   34.3x - [Y-(2X + Y)] = ______.
  
   35.简化| 1-X + Y | - | XY |(其中x 0表示)等于______.
  
   36.已知的x≤Y,X + Y-| X-Y | = ______.
  
   37.已知的x
   B. -3(X + Y);
  
   C.(-XY)-2(X + Y);
  
   D. 3(倍+ Y).
  
   54.2a-[图3b-5α-(图2a-图7b)]等于[]
  
   A.-7α10 b;
  
   > B.图5a +4 b的;
  
   C.-A-4B;
  
   D. 9A-10B.
  
   55.减去-3M等于代数5平方米-3M-5是[]
  
  答:5(M2-1);
  
   B.5平方米-6M-5;
  
   C. 5(M2 +1);
  
  四 - (5平方米6米-5).
  
   56.多项式2AB-9A2-5AB-4A2同类项合并,应该是[]
  
   A.(9A2,4A2)+(-2AB-5AB);
  
   B.(9A2 +4 A2) - (2AB-5AB);
  
   C.(9A2,4A2) - (2AB +5 AB);
  
  四(9A2 -4A2)+(2AB-5AB).
  
   57.当a = 2,B = 1时,-A2B 3 BA2-(-2A2B)等于[]
  
  答:20;
  
  二24; BR p>三0;
  
   D. 16.
  
  ,正确的选择是[]
  
  答:没有类似的项目;
  
   B.(2)和(4)是同类项;
  
   C.(2)和(5)相似的项目;
  
   D.(2)和(4)是不一样的项目.
  
   59.如果A和B有五个多项式,则AB必须是[]
  
   A.十多项式;
  
   B.零多项式;
  
   C.多项式的不超过5倍的数量;
  
   D.低于多项式的5倍.
  
   60. - {[ - (X + Y)]} + { - [(X + Y)]}等于[]
  
   A. 0;
  
  二 - 2Y;
  
   C. X + Y;
  
   D.-2X-2Y.
  
   61.如果A = 3×2-5X +2,B = 3×2-5X +6,然后A和B的大小是
  
   []
  
  答:A> B;
   >
   B. A = B;
  
  三A C.-2AN;
  
   D. -2.
  
   66. (5A-3B)-3(A2-2B)等于[]
  
  答:3A2 +5 +3 b;
  
   B. 2A2 +3 b;
  
   C. 2A3-B2;
  
   D.-3A2 +5 A-5B.
  
   67. X3-5×2-4X +9等于[]
  
   A.(X3-5×2) - (-4X +9);
  
   B. X3-5×2 - (4倍+ 9);
  
   C. - (-X 3 5×2) - (4×-9);
  
   D. 3倍+9-(5×2 - 4倍).
  
   []
  
  结果69.4x2y-5xy2应该是[]
  
   A.-X2Y;
  
   B. -1;
  
   C.-X2Y2;
  
   D.以上答案都不对.
  
  (三)简化
  
   70. (4×2-8X +5) - (X3 +3 X2-6X +2).
  
   72. (0.3x3-X2Y + XY2-Y3) - (-0.5x3-X2Y +0.3 XY2).
  
   73. - {2A2B-[3ABC-(4ab2-A2B)]}.
  
   74. (5a2b 3 A2B2-AB2) - (-2ab2 3 A2B2 + A2B).
  
   75. (X2-2Y2-Z2) - (-Y2 +3 X2-Z2)+(5×2-Y2 +2 Z2).
  
   76. (3A6-A4 2 A5-4A3-1) - (2-α+ A3-A5-A4).
  
   77. (图4a-2B-C)-5α-[图8b-2 C-(A + B)].
  
   78. (2M-3N) - (3M-2N)+(5N + M).
  
   79. (3A2-4AB-5B2) - (2B2-5A2 +2 AB) - (-6AB).
  
   80. XY-(2XY-3Z)+(3XY-4Z).
  
   81. (-3X3 +2 X2-5X +1) - (5-6X-X2 + X3).
  
   83.3x-(2X-4Y-6X)+3(-2Z +2 Y).
  
   84. (1-X 2 4 3 X4-X3) - (2倍2的x×4-5).
  
   85.如果A = 5A2-2AB +3 B2,B =-2B2 +3 AB-A2,计算A + B.
  
   86.已知A = 3A2-5A-12,B = 2A2 +3-4,请求2(AB).
  
  87.2米-{-3N + [-4M-(3M-N)]}.
  
   88.5m2n +(-2m2n)2 MN2-(+ M2N).
  
   89.4(XY + Z)-2(X + YZ)-3(-XYZ).
  
   90.2(X2-2XY + Y2-3)+(1-X 2 + Y 2) - (2倍2的xy + y2)上.
  
   92.2(A2-AB-B2)-3 - (4α-2b)的2(7A2-4AB + B2).
  
   94.4x-2(X-3)-3 - [X-3(4 - 2×)8].以下几种简化,重新评估
  
   97之前
  
  (4).已知A + B = 2,AB = -1时,评价3(A + B)2(AB)2-5(A + B)2×(AB)2英寸/> 98
   追问: 求答案
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  • 1楼网友:神也偏爱
  • 2021-02-18 11:11
谢谢回答!!!
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