2. If a, b and c are integers such that
( 4 2 2)( 4 2 ) 20,
3 3 3 3 + − a + b + c =
then which one of the following is
true ?
(1) a + b – c = 10
(2) a – b + c = 10
(3) a + b = 2c
(4) a + b + c = 16
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2. If a, b and c are integers such that
( 4 2 2)( 4 2 ) 20,
3 3 3 3 + − a + b + c =
then which one of the following is
true ?
(1) a + b – c = 10
(2) a – b + c = 10
(3) a + b = 2c
(4) a + b + c = 16
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which std question is this