3(6a - 2), 5( 4s + 6), 2( 6t - 5), 6(8b + 4), 10( 7z - 6), 2a( 3a + 4), 5p( 2p+ 4), a( a + 4), 2b( 4b - 5), 3t ( t +1), 4p(2p + 7), 2a ( 3a + 5) , 3( 2a + 4) + 5( 3a + 8), 2( 4t + 6) - 2 (3t + 5), 3( 4p + 7) - 3(2p - 2), (x + 2) (x + 4), (x + 3) (x + 5), (x + 5 )(x - 2), (x + 4 )(x + 6), (x + 5 )2.

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