Question

o resultado de (-x).(-3x^3).(2x^2)é=

é pra amanhã.....isso é bem difícil pra mim :"(​

Answer 1

$(-x)\,.\,(-3x^3)\,.\,(2x^2)~=\\\\\\Vamos~comecar~tratando~o~sinal~resultante~da~multiplicacao~dos~tres\\termos.\\\\\\Negativo~\times~Negativo~\times~Positivo~=~\boxed{Positivo}\\\\\\Agora~voltando~para~a~expressao,~sabemos~que~o~resultado~\acute{e}~positivo\\\\\\=~+\,(x)\,.\,(3x^3)\,.\,(2x^2)\\\\\\=~+\,(1x)\,.\,(3x^3)\,.\,(2x^2)\\\\\\=~+\,(1~.~3~.~2)~.~(x~.~x^3~.~x^2)\\\\\\=~+\,(6)~.~(x^{1+3+2})\\\\\\=~+\,6~.~x^{6}\\\\\\=~\boxed{6x^6}$