Question

(x + 3)(x + 4) + 28x = (x + 5)(x + 7)​

Answer 1

Respuesta:

꧁Holi꧂

$(x + 3)(x + 4) + 28x = (x + 5)(x + 7)$

${x}^{2} + 4x + 3x + 12 + 2x = (x + 5)(x + 7)$

${x}^{2} + 4x + 3x + 12 + 28x = {x}^{2} + 7x + 5x + 35$

$4x + 3x + 12 + 28x = 7x + 5x + 35$

$35x + 12 = 7x + 5x + 35$

$35x + 12 = 12x + 35$

$35x - 12x + 12 = 35$

$35x - 12x = 35 - 12$

$23x = 35 - 12$

$23x = 23$

$x = 1$

Rpt: 1

Answer 2

Respuesta:

(x + 3)(x + 4) + 28x = (x + 5)(x + 7)

X2+4X+3X+12+28X=X2+7X+5X+35

4X+3X+12+28X=7X+5X+35

35X+12X=35-12

23X=23

X=1

Explicación paso a paso:

:D