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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 0.07 = 0.0003×x2-0.0161x+0.2626 .
Question type: Equation
Solution:Original question:
7 100 | = | 3 10000 | x | × | 2 | − | 161 10000 | x | + | 1313 5000 |
| Right side of the equation = | 3 5000 | x | − | 161 10000 | x | + | 1313 5000 |
| = | - | 31 2000 | x | + | 1313 5000 |
7 100 | = | - | 31 2000 | x | + | 1313 5000 |
Transposition :
31 2000 | x | = | 1313 5000 | − | 7 100 |
Combine the items on the right of the equation:
31 2000 | x | = | 963 5000 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 963 5000 | ÷ | 31 2000 |
| = | 963 5000 | × | 2000 31 |
| = | 963 5 | × | 2 31 |
We obtained :
| x | = | 1926 155 |
Convert the result to decimal form :
| x | = | 12.425806 |