Final answer:
The student's query involves mathematical calculations, possibly requiring the quadratic formula or manipulations with algebraic expressions. Without further context or correct parameters, a precise solution cannot be provided.
Step-by-step explanation:
The student's question involves a mathematical expression or function. It appears to be a ratio of two quadratic expressions, which may involve factoring, simplification, or division.
The provided text mentions substituting values into a formula, likely the quadratic formula (-b ± √(b² - 4ac))/2a, which is used to find solutions of a quadratic equation of the form ax² + bx + c = 0. There are also steps for solving parallel equations with currents and for mathematical operations with powers and exponents.
However, not all details necessary to solve the question at hand are provided. It appears there are typos or mismatched problems combined into the provided information. Without a clear question or correct values to substitute, it's not possible to give a definitive answer.