| opération | réponse | % Correct |
|---|---|---|
| (-x-7)10 = | -10x-70 | 0%
|
| (4x+7)(-4) = | -16x-28 | 0%
|
| 9x(-2x-10) = | -18x²-90x | 0%
|
| 4(-5x-3) = | -20x-12 | 0%
|
| (10x+4)(-2) = | -20x-8 | 0%
|
| 3(-8x+7) = | -24x+21 | 0%
|
| (-2x-6)(-x) = | 2x²+6x | 0%
|
| -10x(3x+10) = | -30x²-100x | 0%
|
| -5x(6x-7) = | -30x²+35x | 0%
|
| -7x(-5x-10) = | 35x²+70x | 0%
|
| (-10x+5)4 = | -40x+20 | 0%
|
| (8x-5)(-6) = | -48x+30 | 0%
|
| 7x(7x+2) = | 49x²+14x | 0%
|
| -6x(-9x+3) = | 54x²-18x | 0%
|
| -8(7x+8) | -56x-64 | 0%
|
| (-3x-7)2 = | -6x-14 | 0%
|
| (10x-9)7 = | 70x-63 | 0%
|
| -8(-10x-7) = | 80x+56 | 0%
|
| 8(10x+8) | 80x+64 | 0%
|
| (x-10)(-x) = | -x²+10x | 0%
|