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    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 -1/12(x-8)(x-8)+27/4 = -1/8(x-7)(x-7)+8+17/8 .
    Question type: Equation
    Solution:Original question:
      - 1 ÷ 12 × ( x 8)( x 8) + 27 ÷ 4 = - 1 ÷ 8 × ( x 7)( x 7) + 8 + 17 ÷ 8
     Left side of the equation = -
1
12
( x 8)( x 8) +
27
4
    The equation is transformed into :
      -
1
12
( x 8)( x 8) +
27
4
= - 1 ÷ 8 × ( x 7)( x 7) + 8 + 17 ÷ 8
    Remove the bracket on the left of the equation:
     Left side of the equation = -
1
12
x ( x 8) +
1
12
× 8( x 8) +
27
4
                                             = -
1
12
x ( x 8) +
2
3
( x 8) +
27
4
                                             = -
1
12
x x +
1
12
x × 8 +
2
3
( x 8) +
27
4
                                             = -
1
12
x x +
2
3
x +
2
3
( x 8) +
27
4
                                             = -
1
12
x x +
2
3
x +
2
3
x
2
3
× 8 +
27
4
                                             = -
1
12
x x +
2
3
x +
2
3
x
16
3
+
27
4
                                             = -
1
12
x x +
4
3
x +
17
12
    The equation is transformed into :
      -
1
12
x x +
4
3
x +
17
12
= - 1 ÷ 8 × ( x 7)( x 7) + 8 + 17 ÷ 8
     Right side of the equation = -
1
8
( x 7)( x 7) + 8 +
17
8
                                               = -
1
8
( x 7)( x 7) +
81
8
    The equation is transformed into :
      -
1
12
x x +
4
3
x +
17
12
= -
1
8
( x 7)( x 7) +
81
8
    Remove the bracket on the right of the equation:
     Right side of the equation = -
1
8
x ( x 7) +
1
8
× 7( x 7) +
81
8
                                               = -
1
8
x ( x 7) +
7
8
( x 7) +
81
8
                                               = -
1
8
x x +
1
8
x × 7 +
7
8
( x 7) +
81
8
                                               = -
1
8
x x +
7
8
x +
7
8
( x 7) +
81
8
                                               = -
1
8
x x +
7
8
x +
7
8
x
7
8
× 7 +
81
8
                                               = -
1
8
x x +
7
8
x +
7
8
x
49
8
+
81
8
                                               = -
1
8
x x +
7
4
x + 4
    The equation is transformed into :
      -
1
12
x x +
4
3
x +
17
12
= -
1
8
x x +
7
4
x + 4

    The solution of the equation:
        x1≈-4.327379 , keep 6 decimal places
        x2≈14.327379 , 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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