Question

Find the roots by completing the square:- 2x2+x+4=0

Answer 1

Answer:

2[x^2+X/2+2]

=2[x^2+2×x/4+(1/2)^2 -(1/2)^2]+4

=2[(X+1/2)^2]+7/2

To find roots equating it with 0 , we get

(x+1/2)^2=-7/4

Implies no real roots .

Answer 2

Answer:

no real roots .

Step-by-step explanation: