Question

need help: 2x^2+4x+1=0

Answer 1

use the quadratic formula
\[(-b \pm \sqrt{b^2-4ax})/2a\]
\[(-4\pm\sqrt{4^2-4*2*1})/2*2\]

Answer 2

I don't get it

Answer 3

its imposibble to use factorization(maybe) hence the quadratic formula

Answer 4

How can we solve this eqaution to find the value of x?