Question

x + 6) (x + 2) + (x + 4) ( x+ 1) - 2x con exponente 2

Answer 1

$(x + 6) (x + 2) + (x + 4) ( x+ 1) - 2x^{2}$

$x^{2} +2x+6x+12+ x^{2} +x+4x+4-2 x^{2}$

$2x+6x+12+x+4x+4$

$8x+16+5x$

$13x+16$