Respuesta :

micahhatton0722

Answer:

ou can deduce what should  (a+b+c)2  be using same reasoning..

(a+b+c)2=a2+ab+ac+ab+b2+bc+ac+bc+c2  

=a2+b2+c2+2ab+2bc+2ca  

Now the question is what is  (a+b+c+d)2=?  

Do I need to tell you ? Or you can figure it out ?

(a+b+c+d)2

Step-by-step explanation:

oops i put it all in the answer but heres your answer

Otras preguntas