Question

3a ( a+b+c) - 2b (a - b+c ) from 4c (-a + b + c )
NOTE :- solution should be with total explanation in an easy way !!!
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Answer 1

4c(−a+b+c)−[3a(a+b+c)−2b(a−b+c)]

4c(−a+b+c)−[3a2+3ab+3ac−2ab+2b2−2bc]

4c(−a+b+c)−[3a2+2b2+ab+3ac−2bc]

−4ac+4bc+4c2−3a2−2b2−ab−3ac+2bc

4c2−3a2−2b2−ab+6bc−7ac

Answer 2

4c(−a+b+c)−[3a(a+b+c)−2b(a−b+c)]

4c(−a+b+c)−[3a2+3ab+3ac−2ab+2b2−2bc]

4c(−a+b+c)−[3a2+2b2+ab+3ac−2bc]

−4ac+4bc+4c2−3a2−2b2−ab−3ac+2bc

4c2−3a2−2b2−ab+6bc−7ac