Question

√2

2 + 7 + 5√2 = 0 . Solve this quadratic equation by factorization.

Solution: √2

2 + 7 + 5√2 = 0​

Answer 1

Answer:

The given quadratic equation 2x2+7x+52=0 can be factorised as follows:

 

2x2+7x+52=0⇒2x2+2x+5x+52=0⇒2x(x+2)+5(x+2)=0⇒(2x+5)=0,(x+2)=0⇒2x=−5,x=−2⇒x=−25,x=−2  

 

Hence, x=−25 or x=−