The denominator of A-1 - (a + 1) cm is a + 1? And X / X & # 178; - 25-5 / X & # 178; + 10x + 25, (B / A & # 178; - AB + A / B & # 178; - AB) / A-B / ab

RELATED INFORMATIONS

• 1. Is the meaning of fractional multiplication and division the same as that of integer multiplication and division? Are they different?
• 2. Knowledge of primary school marks
• 3. What practical problems can be explained by the knowledge and scores
• 4. Sorting out the knowledge points of scores
• 5. Similarities between integer and decimal multiplication and division
• 6. Decimal multiplication and division have the same meaning as integer multiplication and division, right
• 7. Basic formula of logarithmic function It is known that log10 / 2 = A and log10 / 3 = B. try a and B to denote log12 / 5
• 8. The proof of the arithmetic of logarithm function in the first grade of senior high school
• 9. Spreadsheet: the lowest score is the highest, the equal difference score, the formula? For example: the highest score is 50 points, and the equal difference is 0. When the lowest decimal is 3, 50 points will be obtained; when the second decimal is 5, 49 points will be obtained; when the third decimal is 7, 49 points will be obtained, and so on.
• 10. How to calculate the rapid interpolation method The cost of 1 million is 78 million, and the cost of 30 million is 78 million. How much is the cost of 2006 million?
• 11. 1、[x÷（2－x）]－[（4－x²）÷（x²－4x＋4)] 2、[b÷（a²－ab）＋a÷（b²－ab）]÷[（a－b）÷（ab）]
• 12. Addition and subtraction of fractions in junior high school 1.1/(m^2-3m)-2/(m^2-9) 2.x^3/(x-1)-x^2-x-1 3.a-2-a^2/(a+2) 4.(x-1-8/(x+1))÷x+3/x+1
• 13. Fractional addition and subtraction (3x³-12x)/(x²-2x) – (x³-4x)/(x²+2x)
• 14. Addition and subtraction of fractions What is 5 / 6ab-2 / 3aC + 3 / 4abc
• 15. The operation of fraction in grade eight It is known that a is not equal to B, B is not equal to C, C is not equal to a, and a / (B-C) + B / (C-A) + C / (a-b) = 0 It is proved that a / (B-C) ^ 2 + B / (C-A) ^ 2 + C / (a-b) ^ 2 = 0
• 16. Xiaolan's mother bought several bottles of yogurt for 12.5 yuan in the supply and marketing building, but she found in the food optional room of the department store that the same yogurt was 0.2 yuan cheaper than each bottle in the supply and marketing building. Therefore, when she bought yogurt for the second time, she went to the Department store to buy it. As a result, she spent 18.4 yuan and bought 3 / 5 more bottles than the first time. How many bottles of yogurt did she buy in the supply and marketing building for the first time?
• 17. x2-(y-z)2 ------------ (x+y)2-z2
• 18. The addition and subtraction of fractions in the second volume of the eighth grade! Only 15 and 16 questions! Where a × a + ab-2b × B = 0 2.a÷〔(a-b)(a-c)〕+b÷〔（b-c)(b-a)〕+c÷〔(c-a)(c-b)〕 3.(2x+z-y)÷(x×x-xy+xz-yz)-(2x+y+z)÷(x×x+xy+xz+yz) 4.1÷(a+1)+1÷(a+1)(a+2)+… +1÷(a+2007)(a+2008) Note: a × A is the square of a and so on, [
• 19. ①.X²-2X+1/X²-1 ÷ X²-X/X+1 ②.a-1/a²-4a+4 ÷ a²-1/a²-4 ③.x³-x²/x²-x ÷ x²-2x/x-1 ④.(x-y)²/x+y ÷ 1/y+x X 1/x-y Do me a favor
• 20. With four rational numbers: 3,4, - 6,10, write three different methods of operation, so that the result is equal to 24, three different methods!