In Hinduism and other vedic religions, moksha (also spelled moksa) or mukti refers to liberation from the cycle of death and rebirth, believed to be achievable once one's karma is in balance.
... will make it a perfect square trinomial of the form x2 + 2xy + y2. Since "2xy" in this case is (b/a)x, we must have y = b/(2a), so we add the square of b/(2a) to both ...