Question

(x+1)( x+2) - x(x+5)=6. Se obtiene q x es igual:

Answer 1

(x + 1)(x + 2) - x(x + 5) = 6

x² + 2x + x + 2 - x² - 5x = 6

3x + 2 - 5x = 6

- 2x = 6 - 2

x = 4 / - 2

x = - 2

COMPROBACIÓN =

(x + 1)(x + 2) - x(x + 5) = 6

(-2 + 1)(-2 + 2) - (-2)(-2 + 5) = 6

(1)(0) - 4 + 10 = 6

6 = 6

Saludos, un fuerte abrazooo!!!!.