Question

SUMA Y RESTA DE POLINOMIOS
(2ac+2ab-bc)-(3ab-2bc)

$(2m ^{3}-3n ^{3})+(4m ^{2}n-6mn ^{2})-(m ^{3}+3m^{2} n+3mn^{2}+n ^{2} )$

$(a ^{3}+b^{2}+ab+b+a^{2})+(b^{3}-a ^{2} +ab+a-b^{2} )-(a+2ab+b)$

Answer 1

$2 m^{3} -3n ^{3}+4m ^{2} n-6mn ^{2} -m ^{3}-3m ^{2} n-3mn ^{2} -n x^{2}$
$m ^{3} -3n ^{3} +m ^{2} n-9mn ^{2} -n ^{2}$


$a ^{3} +b ^{2}+ab+b+a ^{2} +b ^{3} -a ^{2}+ab+a-b ^{2} -a-2ab-b$
$a ^{3} +b ^{3}$