Question

x ( x – 1) – 5 (x – 2) = 2

Answer 1

Respuesta:

$x(x - 1) - 5(x - 2) = 2$

$2x - 1x - 5x + 10 = 2$

$2x - 1x - 5 x = 2 - 10$

$2x - 6x = - 8$

$- 4x = - 8$

$x = \frac{ - 8}{ - 4}$

$x = + 2$

Y para comprobar que

x ( x – 1) – 5 (x – 2) = 2

Sustituimos X por 2

$2(2 - 1) - 5(2 - 2) = 2$

$4 - 2 - 10 + 10 = 2$

$2 = 2$