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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 -0.0037x5+0.0782x4-0.5554x3+1.8315x2-2.1252x+3.0867 = 3.1 .
Question type: Equation
Solution:Original question:
The equation is transformed into :
Transposition :
Combine the items on the right of the equation:
The coefficient of the unknown number is reduced to 1 :
We obtained :
This is the solution of the equation.
Convert the result to decimal form :
☆1 equations
[ 1/1 Equation]
Work: Find the solution of equation -0.0037x5+0.0782x4-0.5554x3+1.8315x2-2.1252x+3.0867 = 3.1 .
Question type: Equation
Solution:Original question:
| - | 37 10000 | x | × | 5 | + | 391 5000 | x | × | 4 | − | 2777 5000 | x | × | 3 | + | 3663 2000 | x | × | 2 | = | 31 10 |
| Left side of the equation = | - | 37 2000 | x | + | 391 1250 | x | − | 8331 5000 | x | + | 3663 1000 | x | − | 5313 2500 | x | + | 30867 10000 |
| = | 1659 10000 | x | + | 30867 10000 |
1659 10000 | x | + | 30867 10000 | = | 31 10 |
Transposition :
1659 10000 | x | = | 31 10 | − | 30867 10000 |
Combine the items on the right of the equation:
1659 10000 | x | = | 133 10000 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 133 10000 | ÷ | 1659 10000 |
| = | 133 10000 | × | 10000 1659 |
| = | 19 | × | 1 237 |
We obtained :
| x | = | 19 237 |
Convert the result to decimal form :
| x | = | 0.080169 |