if a+b+c=0then (a+b)(b+c)(a+c)= ?
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Step-by-step explanation:
a+b+c =0
ç =-a- b
a=-c-b
=(-c-b +b) (b-a-b) (a+-a-b)
=-c -a -b
=-(a+b+c)
=0
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