Question

(x + 3)² - x² = 2x +1

Answer 1

Respuesta:

hola *

Resolvemos !

${(x + 3)}^{2} - {x}^{2} = 2x + 1$

${x}^{2} + 2.x.3 + {3}^{2} - {x}^{2} = 2x + 1$

${x}^{2} + 6x + 9 - {x}^{2} = 2x + 1$

$6x + 9 = 2x + 1$

$6x - 2x = 1 - 9$

$4x = - 8$

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

$x = - 2$

Saludos y bendiciones