Question

sendo A,B e C os valores abaixo, Calcule A+B. Sabendo que A= x²+2ax+a²; B= 5x²+3ax+4a² e C= x²+ax+2a²


a) ( )6x²+5ax+5a²

b) ( ) 2x²+3ax+3a²

c) ( )2x²+3ax-3a²

d) ( )6x²+4ax+6a²

e) ( ) NDA​

Answer 1

$IZ\\\\x^2+2ax+a^2+5x^2+3ax+4a^2\\\\=x^2+5x^2+2ax+3ax+a^2+4a^2\\\\\mathrm{Somar\:elementos\:similares:}\:a^2+4a^2=5a^2\\\\=x^2+5x^2+2ax+3ax+5a^2\\\\Somar\:elementos>2ax+3ax=5ax\\=x^2+5x^2+5ax+5a^2\\\\=6x^2+5ax+5a^2$

a) ( X )6x²+5ax+5a²