Question

o quadrado de diferença de 5 menos 4 a ao quadrado​

Answer 1

Resposta:

(5-4a)^2=

(25-40a+16a^2)(25-40a+16a^2)=

625-1000a+400a^2--1000a+1600a^2-640a^3+400a^2--640a^3+256a^4=

256a^4-1280a^3+2400a^2-2000a+625