Solving a cubic equation of one variable m3-2m-24 =0
There's a special formula you can check
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- 1. Solve a cubic equation of one variable x^3-3x^2+3x-1=0 In addition, I also want to ask whether these coefficients can only be solved in a simple way when they are special. For example, the coefficients of this equation are 1,3,3,1, which is a bit like Yang Hui's triangle. Is there any special solution for this kind of equation?
- 2. 3x^3-21x+18=0
- 3. How to solve cubic equation with one variable? For example?
- 4. How to solve cubic equation of one variable
- 5. How to solve the cubic equation of one variable? What is the relationship between the root of the equation and the coefficient of the equation?
- 6. Solving cubic equation with one variable 2X ^ 3-12x ^ 2 + 27x-17 = 0, find X
- 7. How many roots of real number of cubic equation of one variable
- 8. Find the solution of the cubic equation of one variable: x3-x2-x-2 = 0 (3 is cubic, 2 is quadratic)
- 9. How to solve general cubic equation with one variable
- 10. Solving cubic equation of one variable x^3+x^2=1
- 11. How to solve cubic equation of one variable
- 12. How to solve the cubic equation of one variable?
- 13. Solving a cubic equation of one variable 3 times of X - 2 times of X - 2x = 0 Find x
- 14. Factorization 8 + x ^ 3 △ 27 For example, x ^ 3 / 27 should be in the form of fraction
- 15. On a problem of factorization with undetermined coefficients Use undetermined coefficient to decompose a pentanomial, and then you can get a series of equations. How do you want to solve this equation? a+c=-1 d+ac+b=-27 ad+bc=-44 bd=7
- 16. This problem is factorized by undetermined coefficient method? x^4-x^3-5x^2-6x-4 Let x ^ 4-x ^ 3-5X ^ 2-6x-4 = (x ^ 2 + ax + b) (x ^ 2 + CX + D) =x^4+(a+c)x^3+(ac+b+d)x^2+(ad+bc)x+bd It can be concluded that a+c=-1, ac+b+d=-5, ad+bc=-6, bd=-4. How to solve a B C
- 17. Given x + 1 / x-3 = 0, find the value of 1 / x ^ 4 + 1 / x ^ 2 + 1 + x ^ 2 + x ^ 4 Given x ^ 2 / y ^ 2-4x / y + 4 = 0, find the value of fraction x ^ 2-y ^ 2 / XY
- 18. Does the filament of an electric lamp change with temperature? Is the resistance large or small when it is just turned on?
- 19. General division 1 / X & # 178; - 4 and X / 4-2x X / (x-1) & # 178; and 1 / X & # 178; - 1
- 20. Buy a transformer for the electric welding machine, and turn the household electricity from 220 V to two-phase 380 v. how to calculate the power of the electric welding machine? Rated output current 300A, rated input voltage 380 / 220, rated frequency 50Hz, rated input capacity 21.6KVA, no-load voltage 60V, rated load duration rate 20%, rated load voltage 32, current regulation range 90-300, can you make a transformer only for welding machine? I don't know very much. What kind of transformer do you want to make? What are the specific parameters?