Question

(x + 2) ² + (x - 1) ² simplificar

Answer 1

Resposta:

OLÁ!!!

$x {}^{2} + 2x \times 2 + 2 {}^{2} + (x - 1) {}^{2}$

$x {}^{2} + 2x \times 2 + 2 {}^{2} + x {}^{2} - 2x + 1$

$2 {}^{2} = 4$

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

$2x \times 2 = 4x$

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

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

$\boxed {\boxed { 2x {}^{2} + 2x + 5 }}$

$\boxed {\boxed { LATEX. }}$