Question

Efetue as adições e subtracao: (x2+4+2) + (2x-4)

Answer 1

$(2(x + 2 + 1)) + (2(x - 2))$
$(2(x + 3)) + (2(x - 2))$
$2(x + 3) + 2(x - 2)$
$2(x + 3 + x - 2)$
$2(2x + 1)$