Question

efetue as multiplicação:

(5+i)×(-(-1-i)+(3+5i)=​

Answer 1

$(5+i)\times(\,-(-1-i)+(3+5i)\,)\\\\\\(5+i)\times(\,(1+i)+(3+5i)\,)\\\\\\(5+i)\times(\,1+i+3+5i\,)\\\\\\(5+i)\times(\,4+6i\,)\\\\\\Aplicando~a~propriedade~distributiva~da~multiplicacao\\\\\\5~.~4~+~5~.~6i~+~i~.~4~+~i~.~6i\\\\\\20~+~30i~+~4i~+~6i^2\\\\\\20+34i~+~6~.~(-1)\\\\\\20+34i-6\\\\\\\boxed{14+34i}$