| 1) | (4x + 1 ) ( 2x + 5) | 2) | (3x + 3 ) ( 2x + 2) |
| 3) | ( x -3 ) ( x + 7) | 4) | (4x -6 ) ( 3x + 6) |
| 5) | (2x -5 ) ( 2x + 9) | 6) | (4x + 3 ) ( 2x + 1) |
| 7) | ( x -3 ) (3 x + 9) | 8) | (3x -5 ) ( 2x + 4) |
| 9) | (3 x -3 ) ( x + 8) | 10) | (4x -2 ) ( 2x + 7) |
| 11) | ( x + 3 ) ( x + 2) | 12) | ( x -3 ) (2 x + 3) |
| 13) | ( x -1 ) ( x -4) | 14) | (4x + 4 ) ( 2x + 4) |
| 15) | ( 2x + 1 ) (x + 9) | 16) | (3 x -5 ) ( x -2) |
| 17) | (2x + 4 ) ( 2x + 9) | 18) | (3 x -6 ) ( x -2) |
| 19) | (4 x -3 ) ( x + 2) | 20) | (4x + 1 ) ( 2x + 4) |
| 21) | (2x + 2 ) ( 2x + 6) | 22) | (2x -1 ) ( 2x -4) |
| 23) | (2x + 4 ) ( 3x + 2) | 24) | (3x -3 ) ( 3x + 3) |
| 25) | (4 x -6 ) ( x + 7) | 26) | (4x -6 ) ( 3x -4) |
| 27) | (3x + 4 ) ( 2x -2) | 28) | ( x + 4 ) ( x + 2) |
| 29) | (3x -6 ) ( 2x + 9) | 30) | (3x -2 ) ( 3x + 2) |
| 31) | (2 x + 2 ) ( x -3) | 32) | ( 4x + 1 ) (x + 7) |
| 33) | (3x -4 ) ( 3x -3) | 34) | (4 x -5 ) ( x + 7) |
| 35) | (3x + 3 ) ( 2x -2) | 36) | ( x -2 ) ( x + 7) |
| 37) | (2x -1 ) ( 2x -2) | 38) | (4x -4 ) ( 3x + 3) |
| 39) | (3 x -5 ) ( x + 7) | 40) | (2x -6 ) ( 2x -4) |
Joke:
If your father was a mathematician, he would warn you in the form of 'I told you n times; and I told you n+1 times' and so on!