Svp c’est pour demain



Factoriser les expressions suivantes :
1. K(x) = (x+6) (5x-3) - (x + 6) (4x - 1)
2. L(x) = (2x + 3)²-(7- x)²
3. M(x) = (1 - 3x)² - (2x - 5)²
4. N(x) = (4x - 1)(3-7x) + (4x - 1)(x-4)
5. O(x) = x² - 16+ (x-4)(1-2x)
6. P(x) = 9x² + 6x +1
7. Q(x) = (2-x) (2x + 3)-(2-x)²
8. R(x) = (3x + 8) (2x - 1)-(3x +8)(x - 5)
9. S(x) = x³ - 4x² + 4x
10. T(x) = (2x - 3)(x - 5) + 2x - 3