Question

{a-(2b+c)}+{b-(2c+a)}+{c-(2a+b)}

Answer 1

{a -(2b + c)} +{ b -(2c + a)} +{c -(2a +b)}

= a -(2b +c) +b -(2c + a) +c -(2a + b)

= (a + b +c) -{ 2( a+ b +c) +(a + b+c)}

= (a + b +c ) -2(a + b +c) -(a + b +c)

= -2(a + b + c)

Answer 2

Hi friend,
Hope this helped u...
PLZ MARK AS BRAINLIEST....