The basic problem of solving several formula deformations (fraction) We need 10 courses. We must be basic, In a hurry in a hurry in a hurry in a hurry in a hurry Junior high school has a "formula deformation" class, that is to give a formula, let you deformation

RELATED INFORMATIONS

• 1. On the transformation of proper fraction into partial fraction sum Q (x) = (x-x1 (x-x2) -- (x-xn), then, r(x)/Q(x)=A1(x-x1)+A2/(x-x2)----+An/x-xn) Where, how to use the undetermined coefficient method to find AI (I = 1,2,3,4, --)
• 2. Fractional deformation 1、（1/3x+1/5y）/（2x-y） 2、（1/x）/（1/y） 3、（-a+b）/（a-b） 4、 x/y
• 3. Can you tell me about this fractional distortion X-Y (Y-X) squared ---- = --------- 5Y ( ) It's messy to write That is, X-Y of 5Y = what is the square of (Y-X)?
• 4. PEP fifth grade volume I mathematics 120 page 2
• 5. The average of five consecutive natural numbers is 17. After adding two adjacent even numbers, the average is 21. What are the two even numbers?
• 6. Compilation of key knowledge points in volume 4 and volume 5 Overall, it's better to be in order
• 7. There are chickens and rabbits in a farm. If the sum of the number of chickens and rabbits is 180 and the sum of the number of legs is 480, then chickens are better than rabbits
• 8. There are 600 pear and peach trees in the orchard, of which the number of peach trees is three times that of pear trees. How many pear trees are there?
• 9. How to calculate 1.58 * 0.58 + 0.42 * 0.42 + 1.16 * 0.42 how to calculate 1.58 * 0.58 + 0.42 * 0.42 + 1.16 * 0.42
• 10. The fifth grade mathematics book 125 pages 16 questions
• 11. First fraction addition and subtraction 1.(1/x＾3-1/x＾2)×x＾3/x-1 2.x/2-x-4-x＾2/x＾2-4x+4 3.x/x+1-x＾2+1/x＾2+x 4.2/a＾2-1+1/a+1
• 12. What is the law of fraction addition and subtraction? And the law of integer exponential power
• 13. The addition and subtraction of fractions (1) Given a + B = 3, ab = 1, then the value of a / B + B / A is () (2) If x
• 14. Add appropriate formula to keep the score unchanged A-B of a + B = A & # 178; - B & # 178; + a = a + 1 of C
• 15. =I want to solve some fraction problems in the second grade of junior high school ①(5mn²)^-3/（4m³n)^-2 ② (3 under 1-2 radical) ^ 0 - (2 ^ - 1) + | - 3| ③a^-2b²*(-2²b^-2)^-2/a^-4b²
• 16. Factorization of 2x ^ 2 + 2xy-y ^ 2
• 17. In the following five polynomials, which rational number range can be factorized? And write a Book factorization process (everyone hurry up! Thank you) (1)3m(m-n)+6n(n-m) (2)x(b+c-d)-y(d-b-c)-2c+2d-2b (3)2(x-2)^2+5x-17 (4)ab-a-b-a (5)x^3-3x^2+3x-1
• 18. [(power of x) + 5x + 2] * [(power of x) + 5x + 3] Factorization!
• 19. Junior high school mathematics problems about factorization (× 2) 1. Evaluation: 20063 (cubic) - 10063-10003-3000 × 2006 × 1006 2. Calculation: (7 quartic + 64) (15 quartic + 64) (23 quartic + 64) (31 quartic + 64) (39 quartic + 64) / (3 quartic + 64) (11 quartic + 64) (19 quartic + 64) (27 quartic + 64) (35 quartic + 64) The first question may not be clear. It should be 2006 m3 - 1006 m3 - 1000 m3 - 3000 × 2006 × 1006 M3
• 20. The square of 4x - 2x + 6xy-3y The square of X - 8x + 9