Question

plz help me to solve this math problem

Answer 1

=>(b+c)^2a+(c+a)^2b+(a+b)^2c / abc =3
=>(b^2+c^2+2bc)a+(c^2+a^2+2ac)b+(a^2+b^2+2ab)c / abc =3
=>ab^2+ac^2+2abc+bc^2+ba^2+2abc+ca^2+cb^2+2abc =3abc
=>ab^2+ac^2+bc^2+ba^2+ca^2+cb^2+6abc=3abc
=>ab^2+ac^2+bc^2+ba^2+ca^2+cb^2+3abc=0
=>ba^2+ca^2+ab^2+cb^2+ac^2+bc^2+3abc=0
=>(b+c)a^2+(a+c)b^2+(a+b)c^2+3abc=0
=>(-a)a^2+(-b)b^2+(-c)c^2+3abc=0
=>-(a^3+b^3+c^3-3abc)=0
=>a^3+b^3+c^3-3abc=0

Answer 2

Hopefully this will help you