Question

If a+b+c = 6 and ab+bc+ca = 1, then the value of bc(b+c) + ca(c+a) +ab(a+b) +3abc is

Answer 1

Answer:

if a+b+c=6 and ab+bc+ca= 1 than find ab(b+a )+bc(c+b)+ac(a+c)+3abc ab(b+a)+bc(b+c)+ac (a+c)=ab(6-c)+bc(6-a)+ac(6-b)+3abc.......................