(ax² + 5x) / ax² = (ax(x + 5)) / ax² = (x + 5) / x
(-x - y) / (2x + y) = -(x + y) / (2x + y)
(a² - b²) / (4b - 4a) = ((a-b)(a+b)) / (4(b-a)) = -(a + b) / 4
(ax² + 5x) / ax² = (ax(x + 5)) / ax² = (x + 5) / x
(-x - y) / (2x + y) = -(x + y) / (2x + y)
(a² - b²) / (4b - 4a) = ((a-b)(a+b)) / (4(b-a)) = -(a + b) / 4