Identify Expression Type: Step Title: Identify the Type of ExpressionConcise Step Description: Determine the type of expression to apply the correct factoring method.Step Calculation: The expression is of the form a+b2n, which resembles a sum of cubes when n is an odd integer. Here, z6 can be seen as (z3)2, so we can consider the expression as a sum of squares.Step Output: The expression is a sum of squares.
Apply Factoring Rule: Step Title: Apply the Sum of Squares Factoring RuleConcise Step Description: Since the sum of squares does not factor over the real numbers, we check if it can be factored over the complex numbers.Step Calculation: The sum of squares can be factored as (a+bi)(a−bi) over the complex numbers, where i is the imaginary unit. However, in this case, since we are looking for a complete factorization, we recognize that the sum of squares does not have a factorization in terms of real polynomials.Step Output: The expression 8+z6 cannot be factored over the real numbers.