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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 0.0004x3-0.0205x2+0.327x-0.0042 = 1.34 .
Question type: Equation
Solution:Original question:
1 2500 | x | × | 3 | − | 41 2000 | x | × | 2 | + | 327 1000 | x | − | 21 5000 | = | 67 50 |
| Left side of the equation = | 3 2500 | x | − | 41 1000 | x | + | 327 1000 | x | − | 21 5000 |
| = | 359 1250 | x | − | 21 5000 |
359 1250 | x | − | 21 5000 | = | 67 50 |
Transposition :
359 1250 | x | = | 67 50 | + | 21 5000 |
Combine the items on the right of the equation:
359 1250 | x | = | 6721 5000 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 6721 5000 | ÷ | 359 1250 |
| = | 6721 5000 | × | 1250 359 |
| = | 6721 4 | × | 1 359 |
We obtained :
| x | = | 6721 1436 |
Convert the result to decimal form :
| x | = | 4.680362 |