Question

Desenvolva o binômio (2a+b)4.
Por favor peço que me ajudem! Agradecida!

Answer 1

(2a+b).(2a+b).(2a+b).(2a+b)=

(4a²+2ab+2ab+b²).(4a²+2ab+2ab+b²)=

(4a²+4ab+b²).(4a²+4ab+b²)=

16a⁴+16a³b+4a²b²+16a³b+16a²b²+4ab³+4a²b²+4ab³+b⁴=

16a⁴+32a³b+24a²b²+10a³b+8ab³+b⁴.