1. a² - 5a + 6
(Select) ( a + 2 )( a + 3 ) ( a + 6 )( a - 5 ) ( a - 2 )( a - 3 ) ( a - 5 )( a + 1 )

2. k² + 9k + 8
(Select) ( k + 1 )( k + 8 ) ( k - 1 )( k + 8 ) ( k + 9 )( k - 1 ) ( k + 9 )( k + 8 )

3. r² - 10r - 11
(Select) ( r - 10 )( r + 1 ) ( r + 10 )( r + 11 ) ( r - 11 )( r - 10 ) ( r - 11 )( r + 1 )

4. x² + 2x - 15
(Select) ( x + 5 )( x - 3 ) ( x + 15 )( x - 2 ) ( x + 15 )( x - 13 ) ( x - 5 )( x + 3 )

5. x² + 12x + 35
(Select) ( x - 5 )( x - 7 ) ( x - 12 )( x - 35 ) ( x + 5 )( x + 7 ) ( x - 6 )( x + 2 )

6. a² - 9a + 14
(Select) ( a - 7 )( a + 9 ) ( a + 9 )( a - 14 ) ( a - 7 )( a - 2 ) ( a - 14 )( a + 3 )

7. y² + 13y - 48
(Select) ( y - 16 )(y + 3 ) ( y + 16 )( y - 3 ) ( y - 8 )( y + 7 ) ( y - 13 )( y + 48 )

8. w² - 2w - 24
(Select) ( w + 2 )( w + 24 ) ( w - 8 )( w + 3 ) ( w + 6 )( w - 4 ) ( w - 6)( w + 4 )

9. t² + 7t - 18
(Select) ( t - 7 )( t + 18 ) ( t + 3 )( t + 6 ) ( t + 2 )( t - 9 ) ( t - 2 )( t + 9 )

10. x² + 10x + 25
(Select) ( x + 5 )( x + 5 ) ( x - 5 )( x - 5 ) ( x - 2 )( x + 5 ) ( x - 15 )( x + 10 )

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