Overview: 5 questions will be solved this time.Among them
           ☆5 equations

[ 1/5 Equation]
    Work: Find the solution of equation 60 = 1/(0.010098*(1+0.026017*x^2)) .
    Question type: Equation
    Solution:
    After the equation is converted into a general formula, it is converted into:
    ( x + 5 )( x - 5 )=0
    From
        x + 5 = 0
        x - 5 = 0
    it is concluded that:：
        x₁=-5, it is the incremental root of the eqution.
        x₂=5, it is the incremental root of the eqution.    
    There are 2 solution(s).
    There is(are) 2 additive root(s) and 0 real solutions.(Note:additive root, generated by computer, but not suitable for this equation.)


解一元二次方程的详细方法请参阅：《一元二次方程的解法》
[ 2/5 Equation]
    Work: Find the solution of equation 70 = 1/(0.010098*(1+0.026017*x^2)) .
    Question type: Equation
    Solution:
    The solution of the equation:
        x₁≈-3.992475 , keep 6 decimal places
        x₂≈3.992475 , keep 6 decimal places    
    There are 2 solution(s).

解程的详细方法请参阅：《方程的解法》
[ 3/5 Equation]
    Work: Find the solution of equation 80 = 1/(0.010098*(1+0.026017*x^2)) .
    Question type: Equation
    Solution:
    The solution of the equation:
        x₁≈-3.023711 , keep 6 decimal places
        x₂≈3.023711 , keep 6 decimal places    
    There are 2 solution(s).

解程的详细方法请参阅：《方程的解法》
[ 4/5 Equation]
    Work: Find the solution of equation 90 = 1/(0.010098*(1+0.026017*x^2)) .
    Question type: Equation
    Solution:
    The solution of the equation:
        x₁≈-1.963732 , keep 6 decimal places
        x₂≈1.963732 , keep 6 decimal places    
    There are 2 solution(s).

解程的详细方法请参阅：《方程的解法》
[ 5/5 Equation]
    Work: Find the solution of equation 99 = 1/(0.010098*(1+0.026017*x^2)) .
    Question type: Equation
    Solution:
    The solution of the equation:
        x₁≈-0.107040 , keep 6 decimal places
        x₂≈0.107040 , 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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