Question

x2 + 3x + x + x2
reduza os termos semelhantes

Answer 1

$\boxed{ x^{2} +3x+x+ x^{2} =2 x^{2} +4x}$

Answer 2

$x^{2} +3x+ x^{2}$

$x^{2} + x^{2} +3x+x$

$2 x^{2} +4x$