Question

(x + 4)(x + 5) = (x + 2)(x + 6)

Answer 1

Respuesta:

${x}^{2} + 5x + 4x + 20 = {x}^{2} + 6x + 2x + 12$

${x}^{2} + 9x + 20 = {x}^{2} + 8x + 12$

$x = - 8$

Answer 2

Explicación paso a paso:

(x + 4)(x + 5) = (x + 2)(x + 6)

x² + 5x + 4x + 20 = x² + 6x + 2x + 12

x² + 9x + 20 = x² + 8x + 12

Se tachan los x²:

9x + 20 = 8x + 12

9x - 8x = 12 - 20

x = -8

Espero haberte ayudado y suerte!!! :)