Question

133 - 127²; 6x²-8 y?​

Answer 1

Answer

Correct option is

D

3

8

​

,  

2

5

​

 

Here the quadratic equation is ,

6x  

2

+40=31x

⇒6x  

2

−31x+40=0

⇒6x  

2

−16x−15x+40x=0

⇒2x(3x−8)−5(3x−8)

⇒(3x−8)(2x−5)

⇒3x−8=0  

⇒3x=8

⇒x=  

3

8

​

 or ⇒2x−5=0

⇒2x=5

⇒x=  

2

5

​