¥¦§¨©ª: (3 * x) + (5 * y) + x / 2 - y
¥¦§¨©ª_{1}: Expand((a + b + c)^(2))
¥¦§¨©ª_{2}: Factor(x^(3) - (2 * x^(2)) + 1)
¥¦§¨©ª_{3}: Simplify(1 / y - 1 / x)