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

[ 1/1 Equation]
    Work: Find the solution of equation （4—2x）（30—2x） = 600 .
    Question type: Equation
    Solution:Original question:

(

4

−

2

x

)

(

30

−

2

x

)

=

600

    Remove the bracket on the left of the equation:

Left side of the equation =

4

(

30

−

2

x

)

−

2

x

(

30

−

2

x

)

=

4

×

30

−

4

×

2

x

−

2

x

(

30

−

2

x

)

=

120

−

8

x

−

2

x

(

30

−

2

x

)

=

120

−

8

x

−

2

x

×

30

+

2

x

×

2

x

=

120

−

8

x

−

60

x

+

4

x

x

=

120

−

68

x

+

4

x

x

    The equation is transformed into :

120

−

68

x

+

4

x

x

=

600

    The solution of the equation:
        x₁≈-5.365425 , keep 6 decimal places
        x₂≈22.365425 , keep 6 decimal places    
    There are 2 solution(s).

解程的详细方法请参阅：《方程的解法》

Your problem has not been solved here? Please take a look at the  hot problems ！