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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 0.0005x3-0.0233x2+0.3763x+30.282 = 31.524 .
Question type: Equation
Solution:Original question:
1 2000 | x | × | 3 | − | 233 10000 | x | × | 2 | + | 3763 10000 | x | + | 15141 500 | = | 7881 250 |
| Left side of the equation = | 3 2000 | x | − | 233 5000 | x | + | 3763 10000 | x | + | 15141 500 |
| = | 207 625 | x | + | 15141 500 |
207 625 | x | + | 15141 500 | = | 7881 250 |
Transposition :
207 625 | x | = | 7881 250 | − | 15141 500 |
Combine the items on the right of the equation:
207 625 | x | = | 621 500 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 621 500 | ÷ | 207 625 |
| = | 621 500 | × | 625 207 |
| = | 3 4 | × | 5 |
We obtained :
| x | = | 15 4 |
Convert the result to decimal form :
| x | = | 3.75 |