| Équation | Solution | % Correct |
|---|---|---|
| (a-b)² | a²-2ab+b² |a^2-2ab+b^2 | 100%
|
| (a+b)(a-b) | a²-b² |a^2-b^2 | 93%
|
| (a+b)² | a²+2ab+b² |a^2+2ab+b^2 | 91%
|
| (a+b)²-(a-b)² | 4ab | 43%
|
| (a+b)²+(a-b)² | 2a²+2b² |2a^2+2b^2 | 39%
|
| (a+b)²+(a+b)(a-b) | 2a²+2ab |2a^2+2ab | 30%
|
| (a-b)²+(a+b)(a-b) | 2a²-2ab |2a^2-2ab | 28%
|
| (a+b)²-(a+b)(a-b) | 2ab+2b² |2ab+2b^2 | 28%
|
| (a-b)²-(a+b)(a-b) | -2ab+2b² | 2b²-2ab |2b^2-2ab |-2ab+2b^2 | 28%
|