Final answer:
The task involves solving quadratic equations using the quadratic formula, which necessitates substituting the given values for a, b, and c into the formula and solving for x.
Step-by-step explanation:
The question seems to involve simplifying given polynomials, however the additional provided information suggests solving quadratic equations using the quadratic formula, which is in the form of ax² + bx + c = 0. The quadratic formula is -b ± √(b² - 4ac) / (2a). Several examples are given with different values of a, b, and c, which can be substituted into the quadratic formula. This process involves calculating the determinant (b² - 4ac), and then using it to find the two possible solutions for x.