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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.
    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 199.65+(104.44+10.9x)(x+3)/2 = (107.7x+38.21x*x)/2 .
    Question type: Equation
    Solution:Original question:
     
3993
20
+ (
2611
25
+
109
10
x )( x + 3) ÷ 2 = (
1077
10
x +
3821
100
x x ) ÷ 2
    Remove the bracket on the left of the equation:
     Left side of the equation =
3993
20
+
2611
25
( x + 3) ×
1
2
+
109
10
x ( x + 3) ×
1
2
                                             =
3993
20
+
2611
50
( x + 3) +
109
20
x ( x + 3)
                                             =
3993
20
+
2611
50
x +
2611
50
× 3 +
109
20
x ( x + 3)
                                             =
3993
20
+
2611
50
x +
7833
50
+
109
20
x ( x + 3)
                                             =
35631
100
+
2611
50
x +
109
20
x ( x + 3)
                                             =
35631
100
+
2611
50
x +
109
20
x x +
109
20
x × 3
                                             =
35631
100
+
2611
50
x +
109
20
x x +
327
20
x
                                             =
35631
100
+
6857
100
x +
109
20
x x
    The equation is transformed into :
     
35631
100
+
6857
100
x +
109
20
x x = (
1077
10
x +
3821
100
x x ) ÷ 2
    Remove the bracket on the right of the equation:
     Right side of the equation =
1077
10
x ×
1
2
+
3821
100
x x ×
1
2
                                               =
1077
20
x +
3821
200
x x
    The equation is transformed into :
     
35631
100
+
6857
100
x +
109
20
x x =
1077
20
x +
3821
200
x x

    The solution of the equation:
        x1≈-4.597564 , keep 6 decimal places
        x2≈5.675557 , keep 6 decimal places
    
    There are 2 solution(s).


解程的详细方法请参阅:《方程的解法》



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