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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 200*(1+0.5*x)*(1-0.5*x)*250+100*(1+1.5*x)(1-5/6*x)*200*1.5 = 200 .
    Question type: Equation
    Solution:Original question:
     200(1 +
1
2
x )(1
1
2
x ) × 250 + 100(1 +
3
2
x )(15 ÷ 6 × x ) × 200 ×
3
2
= 200
     Left side of the equation = 50000(1 +
1
2
x )(1
1
2
x ) + 30000(1 +
3
2
x )(15 ÷ 6 × x )
    The equation is transformed into :
     50000(1 +
1
2
x )(1
1
2
x ) + 30000(1 +
3
2
x )(15 ÷ 6 × x ) = 200
    Remove the bracket on the left of the equation:
     Left side of the equation = 50000 × 1(1
1
2
x ) + 50000 ×
1
2
x (1
1
2
x ) + 30000(1 +
3
2
x )(15 ÷ 6 × x )
                                             = 50000(1
1
2
x ) + 25000 x (1
1
2
x ) + 30000(1 +
3
2
x )(15 ÷ 6 × x )
                                             = 50000 × 150000 ×
1
2
x + 25000 x (1
1
2
x ) + 30000(1 +
3
2
x )(15 ÷ 6 × x )
                                             = 5000025000 x + 25000 x (1
1
2
x ) + 30000(1 +
3
2
x )(15 ÷ 6 × x )
                                             = 5000025000 x + 25000 x × 125000 x ×
1
2
x + 30000(1 +
3
2
x )
                                             = 5000025000 x + 25000 x 12500 x x + 30000(1 +
3
2
x )(15 ÷ 6 × x )
                                             = 500000 x 12500 x x + 30000(1 +
3
2
x )(15 ÷ 6 × x )
                                             = 500000 x 12500 x x + 30000 × 1(15 ÷ 6 × x ) + 30000 ×
3
2
x
                                             = 500000 x 12500 x x + 30000(15 ÷ 6 × x ) + 45000 x (15 ÷ 6 × x )
                                             = 500000 x 12500 x x + 30000 × 130000 × 5 ÷ 6 × x
                                             = 500000 x 12500 x x + 3000025000 x + 45000 x (15 ÷ 6 × x )
                                             = 8000025000 x 12500 x x + 45000 x (15 ÷ 6 × x )
                                             = 8000025000 x 12500 x x + 45000 x × 145000 x × 5
                                             = 8000025000 x 12500 x x + 45000 x 37500 x x
                                             = 80000 + 20000 x 12500 x x 37500 x x
    The equation is transformed into :
     80000 + 20000 x 12500 x x 37500 x x = 200

    The solution of the equation:
        x1≈-1.079062 , keep 6 decimal places
        x2≈1.479062 , 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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