| 1) | (4x -1 )2 - ( 2x -1)2 | 2) | (4x + 4 )2 - ( 2x + 2)2 |
| 3) | (3 x -5 )2 + ( x -2)2 | 4) | (2x + 2 )2 - ( 2x + 7)2 |
| 5) | (2x + 2 )2 - ( 2x + 5)2 | 6) | ( x + 2 )2 - (3 x + 1)2 |
| 7) | ( 3x + 2 )2 + (x + 1)2 | 8) | ( 4x + 1 )2 + (x + 4)2 |
| 9) | (2x -5 )2 - ( 2x + 7)2 | 10) | (4x + 4 )2 - ( 3x -4)2 |
| 11) | ( x + 2 )2 - ( x -4)2 | 12) | (2x + 4 )2 - ( 2x -4)2 |
| 13) | ( 2x + 1 )2 + (x + 2)2 | 14) | (2x + 3 )2 + ( 2x -4)2 |
| 15) | (2x -6 )2 - ( 2x + 7)2 | 16) | (2x + 4 )2 + ( 2x + 7)2 |
| 17) | ( x -4 )2 + ( x + 7)2 | 18) | (4x -4 )2 - ( 3x + 8)2 |
| 19) | ( x -6 )2 + (2 x + 4)2 | 20) | (4x -1 )2 - ( 3x + 4)2 |
| 21) | (2x -2 )2 + ( 3x + 6)2 | 22) | (3x -6 )2 + ( 3x + 8)2 |
| 23) | ( 3x + 2 )2 - (x + 5)2 | 24) | ( x + 1 )2 - (3 x -1)2 |
| 25) | ( 2x + 1 )2 - (x + 1)2 | 26) | ( x -1 )2 + ( x + 1)2 |
| 27) | ( 4x + 2 )2 + (x + 4)2 | 28) | ( x + 3 )2 - ( x + 2)2 |
| 29) | (2x -3 )2 - ( 2x -3)2 | 30) | (3x -6 )2 - ( 3x + 1)2 |
| 31) | ( x -1 )2 - (3 x + 8)2 | 32) | ( x + 3 )2 - (3 x -1)2 |
| 33) | (2x + 3 )2 - ( 3x + 7)2 | 34) | (3x -6 )2 + ( 2x + 9)2 |
| 35) | ( x + 1 )2 - (3 x -4)2 | 36) | (3x + 3 )2 - ( 2x + 7)2 |
| 37) | ( x -3 )2 - ( x + 6)2 | 38) | ( x -6 )2 + ( x -4)2 |
| 39) | (3 x -2 )2 + ( x + 8)2 | 40) | (3x -6 )2 + ( 3x -3)2 |
Joke:
Terry shouted at his stubborn public-school-boy son: 'I pay thousands of pounds to your schoolmasters; but your classmates seem to be your mentors!'