Question

2x^2+x+4=0 find roots by quadratic formula​

Answer 1

Step-by-step explanation:

a=2,b=1,c=4

x=-b+_(√b^2-4ac)/2a

=-1+_(√1^2-4×2×4)/2×2

=-1+_(√1-32)/4

=-1+_(-√31)/4

x =-1+(-√31)/4=-1-√31/4

or -1-(-√31)/4=-1+√31/4