Sagot :
bjr
5 * 3 * x² = 15x²
3 * x * 5 = 15x
-2 * 4 * x = -8x
-6 * (-3) * x = 18x
3 * (-7) = -21
3 * x * 4 * x = 12x²
3 * 4 * x² = 12 x²
2 * x² * 4 = 8x²
-3 * (-5) * x² = 15x²
et
2 * x² * (-7) = -14x²
bjr
5 * 3 * x² = 15x²
3 * x * 5 = 15x
-2 * 4 * x = -8x
-6 * (-3) * x = 18x
3 * (-7) = -21
3 * x * 4 * x = 12x²
3 * 4 * x² = 12 x²
2 * x² * 4 = 8x²
-3 * (-5) * x² = 15x²
et
2 * x² * (-7) = -14x²