Factorise (2a-b-c)³+(2b-c-a)³+(2c-b-a)³ .
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Factoring: 3a2 + 6ab - 2a + 3b2 + 2b + c2
Thoughtfully split the expression at hand into groups, each group having two terms :
Group 1: 2b - 2a
Group 2: 6ab + 3a2
Group 3: 3b2 + c2
Pull out from each group separately :
Group 1: (a - b) • (-2)
Group 2: (a + 2b) • (3a)
Group 3: (3b2 + c2) • (1)
Looking for common sub-expressions :
Group 1: (a - b) • (-2)
Group 3: (3b2 + c2) • (1)
Group 2: (a + 2b) • (3a)
Thoughtfully split the expression at hand into groups, each group having two terms :
Group 1: 2b - 2a
Group 2: 6ab + 3a2
Group 3: 3b2 + c2
Pull out from each group separately :
Group 1: (a - b) • (-2)
Group 2: (a + 2b) • (3a)
Group 3: (3b2 + c2) • (1)
Looking for common sub-expressions :
Group 1: (a - b) • (-2)
Group 3: (3b2 + c2) • (1)
Group 2: (a + 2b) • (3a)
paramjeetkaur44:
hiii
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