Question: 2. Expand and simplify a) ( a + b) . ( a - b) b) (a - b ) . (a + 28) ) (

2. Expand and simplify a) ( a + b) . (

a - b) b) (a - b ) . (a + 28)

2. Expand and simplify a) ( a + b) . ( a - b) b) (a - b ) . (a + 28) ") ( 4 a + b ) . ( a +2b ) ") (20 +36) . (3a -2b) 3. Knowledge/Understanding

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