Question

Multiplique o polinômio 2n²+3n-5, termo a termo, pelo monômio 4n​

Answer 1

$(2n^2+3n-5)~.~(4n)~=\\\\\\=~(2n^2~.~4n)~+~(3n~.~4n)~-~(5~.~4n)~=\\\\\\=~\boxed{8n^3~+~12n^2~-~20n}$