. Find the roots of the quadratic equation 2x2+x-4=0 by the method of completing thesquare.

. Find the roots of the quadratic equation 2x2+x-4=0 by the method of

1.	. Find the roots of the quadratic equation 2x2+x-4=0 by the method of completing thesquare.
Answer» 2x^2 + x - 4 = 0 x = -b +\\- √b^2 - 4ac _____________________ 2a x = -1 +\\- √1^2 - 424 ____________________ 2*2 x = -1 +\\- √1-32 _______________ 4 x = -1 +\\- √31 ___________ 4 Therefore : x = -1 + √31 x= -1 - √31 _________ ________ 4 4