Mathematics
         
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    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 700000*(1+r)^-5 = 397200 .
    Question type: Equation
    Solution:
    After the equation is converted into a general formula, there is a common factor:
    ( r + 1 )
    From
        r + 1 = 0

    it is concluded that::
        r1=-1, it is the incremental root of the eqution.
    Solutions that cannot be obtained by factorization:
        r2≈0.119999 , keep 6 decimal places
    
    There are 2 solution(s).

    There is(are) 1 additive root(s) and 1 real solutions.
(Note:additive root, generated by computer, but not suitable for this equation.)


解程的详细方法请参阅:《方程的解法》



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