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Mathematical calculation：
    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 x(0.1x+1)(0.05x+1) = 0 .
    Question type: Equation
    Solution:Original question:
      x (
1
10
 x + 1)(
1
20
 x + 1) = 0
    Remove the bracket on the left of the equation:
     Left side of the equation = x ×
1
10
 x (
1
20
 x + 1) + x × 1(
1
20
 x + 1)
                                             = x ×
1
10
 x ×
1
20
 x + x ×
1
10
 x × 1 + x × 1(
1
20
 x + 1)
                                             = x ×
1
200
 x x + x ×
1
10
 x + x × 1(
1
20
 x + 1)
                                             = x ×
1
200
 x x + x ×
1
10
 x + x × 1 ×
1
20
 x + x
                                             = x ×
1
200
 x x + x ×
1
10
 x + x ×
1
20
 x + x × 1
    The equation is transformed into :
      x ×
1
200
 x x + x ×
1
10
 x + x ×
1
20
 x + 1 x = 0

    After the equation is converted into a general formula, it is converted into:
    ( x + 20 )( x + 10 )( x +0 )=0
    From
        x + 20 = 0
        x + 10 = 0
        x + 0 = 0
    it is concluded that:：
        x1=-20
        x2=-10
        x3=0    
    There are 3 solution(s).

解程的详细方法请参阅：《方程的解法》


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