Math, asked by karansingh19462, 6 hours ago

completing sque method 4x²+3x+5=0
please solve guys please​

Answers

Answered by amitraj5712x
0

this is not right question

Answered by bhavikmittal005
0

Answer:

Step-by-step explanation:4x  

2

+3x+5=0

Dividing by 4

4

4x  

2

 

+  

4

3x

+  

4

5

=0

x  

2

+  

4

3x

+  

4

5

=0

We know that  

(a+b)  

2

=a  

2

+2ab+b  

2

 

Here a=x

2ab=  

4

3x

 

2b=  

4

3

 

b=  

8

3

 

Adding and subtracting (  

8

3

)  

2

 

x  

2

+  

4

3x

+  

4

5

+(  

8

3

)  

2

−(  

8

3

)  

2

=0

(x+  

8

3

)  

2

+  

4

5

−(  

8

3

)  

2

=0

(x+  

8

3

)  

2

=  

64

9

−  

4

5

 

(x+  

8

3

)  

2

=  

64

9−80

 

(x+  

8

3

)  

2

=  

64

−71

 

Since square of any number cannot be negative

So, answer does not exist.4x  

2

+3x+5=0

Dividing by 4

4

4x  

2

 

+  

4

3x

+  

4

5

=0

x  

2

+  

4

3x

+  

4

5

=0

We know that  

(a+b)  

2

=a  

2

+2ab+b  

2

 

Here a=x

2ab=  

4

3x

 

2b=  

4

3

 

b=  

8

3

 

Adding and subtracting (  

8

3

)  

2

 

x  

2

+  

4

3x

+  

4

5

+(  

8

3

)  

2

−(  

8

3

)  

2

=0

(x+  

8

3

)  

2

+  

4

5

−(  

8

3

)  

2

=0

(x+  

8

3

)  

2

=  

64

9

−  

4

5

 

(x+  

8

3

)  

2

=  

64

9−80

 

(x+  

8

3

)  

2

=  

64

−71

 

Since square of any number cannot be negative

So, answer does not exist.

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