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1) X² +5X +6 =

2) X² -5X +6 =

3) X² +5X - 6 =

4) X² -5X -6 =

A=(X - 6)( X+1 )

B=(X + 2)( X+3 )

C=(X - 2)( X-3 )

D=(X + 6)( X-1 )

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