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

[ 1/1 Equation]
    Work: Find the solution of equation （a+1）（2a+3） = 0 .
    Question type: Equation
    Solution:Original question:

(

a

+

1

)

(

2

a

+

3

)

=

0

    Remove the bracket on the left of the equation:

Left side of the equation =

a

(

2

a

+

3

)

+

1

(

2

a

+

3

)

=

a

×

2

a

+

a

×

3

+

1

(

2

a

+

3

)

=

a

×

2

a

+

3

a

+

1

×

2

a

+

1

×

3

=

a

×

2

a

+

3

a

+

2

a

+

3

=

a

×

2

a

+

5

a

+

3

    The equation is transformed into :

a

×

2

a

+

5

a

+

3

=

0

    After the equation is converted into a general formula, it is converted into:
    ( 2a + 3 )( a + 1 )=0
    From
        2a + 3 = 0
        a + 1 = 0
    it is concluded that:：

a1=

-

3 2

a2=-1

    
    There are 2 solution(s).

解一元二次方程的详细方法请参阅：《一元二次方程的解法》

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