3. 2x - 1 (2x - 1)(2 - x) 4x - 2x² + x - 2 5x - x² - 2
____ = ______________ = _____________ = ________
x + 2 (x + 2)(2 - x) 2x - x² + 4 + 2x 4x - x² + 4
4.
6xy 2y
------ = ------
9x² 3x
x + 3 x + 3 1
_____ = _____ = ___
5x + 15 5(x + 3) 5
x²- 4x + 4 (x - 2)² x - 2
________ = _______ = _____
x² - 2x x(x - 2) x