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On line Solution of Monovariate Equation：
Input any unary equation directly, and then click the "Next" button to obtain the solution of the equation.
It supports equations that contain mathematical functions.
Input any unary equation directly, and then click the "Next" button to obtain the solution of the equation.
It supports equations that contain mathematical functions.
Current location：Equations > Monovariate Equation > The history of univariate equation calculation > Answer
Overview: 1 questions will be solved this time.Among them
☆1 equations
[ 1/1 Equation]
Work: Find the solution of equation -0.0001x3-0.0009x2+0.112x+0.4922 = 0 .
Question type: Equation
Solution:Original question:
| - | 1 10000 | x | × | 3 | − | 9 10000 | x | × | 2 | + | 14 125 | x | + | 2461 5000 | = | 0 |
| Left side of the equation = | - | 3 10000 | x | − | 9 5000 | x | + | 14 125 | x | + | 2461 5000 |
| = | 1099 10000 | x | + | 2461 5000 |
1099 10000 | x | + | 2461 5000 | = | 0 |
Transposition :
1099 10000 | x | = | 0 | − | 2461 5000 |
Combine the items on the right of the equation:
1099 10000 | x | = | - | 2461 5000 |
The coefficient of the unknown number is reduced to 1 :
| x | = | - | 2461 5000 | ÷ | 1099 10000 |
| = | - | 2461 5000 | × | 10000 1099 |
| = | - | 2461 | × | 2 1099 |
We obtained :
| x | = | - | 4922 1099 |
Convert the result to decimal form :
| x | = | - 4.478617 |