please answer these questions
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LHS=(a+b+c)*(a+b+c)
=a2+b2+C2+2ab+2bc+2ac
RHS=(-a-b-c)*(-a-b-c)
=a2+be+C2+2ab+2bc+2ac
LHS=RHS
LHS=(a+b+c)*(a+b+c)
=a2+b2+C2+2ab+2bc+2ac
RHS=(-a-b-c)*(-a-b-c)
=a2+be+C2+2ab+2bc+2ac
LHS=RHS
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