Assignment:
Q1. How would you apply a factoring formula to completely factor the expression "x4 - 1"?
Q2. i. What does the symbol "i" represent?
ii. Is "12.5555…" a rational or irrational number? Explain.
iii. Is "2.1273685…" a rational or irrational number? Explain.
iv. Is "548/799" a rational or irrational number? Explain.
v. Simplify "(5 + 3i)(5 - 3i)." Is the result real, complex, or both? Explain.
Provide complete and step by step solution for the question and show calculations and use formulas.