Question

2x²+×+4=0 by completing square method

Answer 1

$2 {x}^{2} + x + 4 = 0$

$2 {x}^{3} + 4 = 0$

$6 {x}^{3} = 0$

${x}^{3} = 0 - 6$

${x}^{3} = - 6$

${x}^{3} = - 6$

$x = - 2$

Answer 2

Answer:

Step-by-step explanation: