{(a² - x²)/(a + y)} × {(a² - y²)/(ax + x²)} × {1/(a - x)} = কত?

প্রশ্ন: {(a² - x²)/(a + y)} × {(a² - y²)/(ax + x²)} × {1/(a - x)} = কত?

সমাধান:
(a² - x²)/(a + y) × (a² - y²)/(ax + x²) × 1/(a - x)
= (a + x)(a - x)/(a + y) × (a - y)(a + y)/x(a + x) × 1/(a - x)
= (a - y)/x