Question

x - 1 . (x + 1)
2 x + 4x +2 .x - 1​

Answer 1

Explicación paso a paso:

$x - 1 \times (x + 1) = \\ x - (x + 1) = \\ x - x - 1 = \\ - 1$

$2x + 4x + 2 x - 1 = \\ 8x - 1 = 0 \\ 8x = 1 \\ x = \frac{1}{8}$