Question

find the roots of the given quadratic equation by the method of completing the square 2xsq. + x - 4 =0

Answer 1

hi frnd! your answer is as shown in below

2xsq.+x-4=0
dividing whole by 2, we get
xsq.+x/2-2=0
dividind middle term by 2x,we get
x/2*


hope it helps uu

please markk it as brainlient answer

Answer 2

2x² + x -4=0
2x² + x = 4
x² + x/2 + 1/4 = 2+1/4
(x + 1/2)2 = 9/4
(x + 1/2) = ± 3/2
x = 3/2 - 1/2 = 1
or
x = 3/2 + 1/2 = -2

Hence, x = 1 or -2.