2 | 2 | 2(x+3)−2x | 2x+6−2x | 6 | |||||
− | = | = | = | ||||||
x | x+3 | x(x+3) | x(x+3) | x(x+3) |
3x+3 | x−4 | (3x+3)(x−1)+(x−4)(x+4) | |||
+ | = | = | |||
x+4 | x−1 | (x+4)(x−1) |
3x2−3x+3x−3+x2+4x−4x−16 | 4x2−19 | |||
= | = | |||
(x+4)(x−1) | (x+4)(x−1) |
8 | x+4 | 8 | x+4 | 8−(x+4)(x+4) | |||||
− | = | − | = | = | |||||
x2−16 | x−4 | (x−4)(x+4) | x−4 | (x−4)(x+4) |
8−x2−4x−4x−16 | −x2−8x−8 | |||
= | = | |||
(x−4)(x+4) | (x−4)(x+4) |