Question

me ayudan es.para.hoy​

Answer 1

Respuesta:

8x

Explicación paso a paso:

$(x + 1 {)}^{2} - ( {x - 1})^{2} + 4x \\ ( {x}^{2} +2 x + 1) - ( {x}^{2} - 2x + 1) + 4x \\ {x}^{2} + 2x + 1 - {x}^{2} + 2x - 1 + 4x \\ agrupamos \: terminos \: semejantes \\ 8x$

Answer 2

Explicación paso a paso:

$(x + 1) ^{2} - (x - 1)^{2} + 4x$

$x ^{2} + 2x + 1 - (x - 1)^{2} + 4x$

$x^{2} + 2x + 1 - (x ^{2} - 2x + 1) + 4x$

${x}^{2} + 2x + 1 - {x}^{2} + 2x - 1 + 4x$

$(1 - 1) {x}^{2} + (2 + 2 + 4)x + (1 - 1)$

$0 + (2 + 2 + 4)x + (1 - 1)$

$0 + 8x + (1 - 1)$

$0 + 8x + 0$

$= 8x$

(espero y te sirva) :3