Question

procedimiento de 2x² + 5x + 2 = 0?​

Answer 1

Explicación paso a paso:

$2{x}^{2} + 5x + 2 = 0 \\ 2 {x}^{2} + 4x + x + 2 = 0 \\ 2x(x + 2) + 1(x + 2) = 0$

$(2x + 1)(x + 2) = 0 \\ 2x + 1 = 0 \\ = 2x = - 1 \\ = x = \frac{ - 1}{2}$

or

$x + 2 = 0 \\ x = - 2$