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    Overview: 1 questions will be solved this time.Among them
           ☆1 equations

[ 1/1 Equation]
    Work: Find the solution of equation x+x*(x-0.2)*(-0.05)+x*(x-0.2)*(x-0.4)*(x-0.6)*(-5/48)+x*(x-0.2)*(x-0.4)*(x-0.6)*(x-0.8)*(-5/96) = 0.45 .
    Question type: Equation
    Solution:Original question:
      x + x ( x
1
5
)( -
1
20
) + x ( x
1
5
)( x
2
5
)( x
3
5
)( - 5 ÷ 48) + x ( x
1
5
)( x
2
5
) =
9
20
    Remove the bracket on the left of the equation:
     Left side of the equation = x + x x ( -
1
20
) x ×
1
5
( -
1
20
) + x ( x
1
5
)( x
2
5
)( x
3
5
)( - 5 ÷ 48)
                                             = x x x ×
1
20
x ×
1
5
( -
1
20
) + x ( x
1
5
)( x
2
5
)( x
3
5
)( - 5 ÷ 48)
                                             = x x x ×
1
20
+ x ×
1
5
×
1
20
+ x ( x
1
5
)( x
2
5
)( x
3
5
)( - 5 ÷ 48)
                                             = x x x ×
1
20
+ x ×
1
100
+ x ( x
1
5
)( x
2
5
)( x
3
5
)( - 5 ÷ 48) + x
                                             =
101
100
x x x ×
1
20
+ x ( x
1
5
)( x
2
5
)( x
3
5
)( - 5 ÷ 48) + x ( x
1
5
)
                                             =
101
100
x x x ×
1
20
+ x x ( x
2
5
)( x
3
5
)( - 5 ÷ 48) x ×
1
5
                                             =
101
100
x x x ×
1
20
+ x x x ( x
3
5
)( - 5 ÷ 48) x x
                                             =
101
100
x x x ×
1
20
+ x x x x ( - 5 ÷ 48) x x
                                             =
101
100
x x x ×
1
20
x x x x × 5 ÷ 48 x
                                             =
101
100
x x x ×
1
20
x x x x ×
5
48
x x
                                             =
101
100
x x x ×
1
20
x x x x ×
5
48
+ x x
                                             =
101
100
x x x ×
1
20
x x x x ×
5
48
+ x x
                                             =
101
100
x x x ×
1
20
x x x x ×
5
48
+ x x
                                             =
101
100
x x x ×
1
20
x x x x ×
5
48
+ x x
                                             =
101
100
x x x ×
1
20
x x x x ×
5
48
+ x x
                                             =
101
100
x x x ×
1
20
x x x x ×
5
48
+ x x
                                             =
101
100
x x x ×
1
20
x x x x ×
5
48
+ x x
                                             =
101
100
x x x ×
1
20
x x x x ×
5
48
+ x x
                                             =
101
100
x x x ×
1
20
x x x x ×
5
48
+ x x
                                             =
101
100
x x x ×
1
20
x x x x ×
5
48
+ x x
                                             =
101
100
x x x ×
1
20
x x x x ×
5
48
+ x x
                                             =
101
100
x x x ×
1
20
x x x x ×
5
48
+ x x
                                             =
101
100
x x x ×
1
20
x x x x ×
5
48
+ x x
                                             =
101
100
x x x ×
1
20
x x x x ×
5
48
+ x x
                                             =
101
100
x x x ×
1
20
x x x x ×
5
48
+ x x

    The solution of the equation:
        x1≈-2.381745 , keep 6 decimal places
        x2≈0.455747 , keep 6 decimal places
        x3≈2.009077 , keep 6 decimal places
    
    There are 3 solution(s).


解程的详细方法请参阅:《方程的解法》



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