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Enter the mathematical formula directly and click the "Next" button to get the calculation answer.
It supports mathematical functions (including trigonometric functions).
Current location：Mathematical operation > History of Mathematical Computation > Answer
Overview: 1 questions will be solved this time.Among them
☆1 equations
[ 1/1 Equation]
Work: Find the solution of equation (28-2x)*0.5x = 0 .
Question type: Equation
Solution:Original question:
| ( | 28 | − | 2 | x | ) | × | 1 2 | x | = | 0 |
| Left side of the equation = | 28 | × | 1 2 | x | − | 2 | x | × | 1 2 | x |
| = | 14 | x | − | 1 | x | x |
| 14 | x | − | 1 | x | x | = | 0 |
After the equation is converted into a general formula, it is converted into:
( x +0 )( x - 14 )=0
From
x + 0 = 0
x - 14 = 0
it is concluded that:：
x1=0
x2=14
There are 2 solution(s).
解一元二次方程的详细方法请参阅：《一元二次方程的解法》