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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 -0.0023x2+0.0209x+16.608 = 4 .
Question type: Equation
Solution:Original question:
| - | 23 10000 | x | × | 2 | + | 209 10000 | x | + | 2076 125 | = | 4 |
| Left side of the equation = | - | 23 5000 | x | + | 209 10000 | x | + | 2076 125 |
| = | 163 10000 | x | + | 2076 125 |
163 10000 | x | + | 2076 125 | = | 4 |
Transposition :
163 10000 | x | = | 4 | − | 2076 125 |
Combine the items on the right of the equation:
163 10000 | x | = | - | 1576 125 |
The coefficient of the unknown number is reduced to 1 :
| x | = | - | 1576 125 | ÷ | 163 10000 |
| = | - | 1576 125 | × | 10000 163 |
| = | - | 1576 | × | 80 163 |
We obtained :
| x | = | - | 126080 163 |
Convert the result to decimal form :
| x | = | - 773.496933 |