0. Review of Algebra

Factor each polynomial. See Examples 5 and 6. x^4-16

Factor each polynomial. See Examples 5 and 6. y^4-81

In Exercises 49–64, factor any perfect square trinomials, or state that the polynomial is prime.9x² + 48xy + 64y²

In Exercises 45–68, factor by grouping.ay − by + bx − ax

In Exercises 1–68, factor completely, or state that the polynomial is prime. a²(x − y) + 4(y − x)

Factor each polynomial. See Examples 5 and 6. 25s^4-9t^2

Factor each polynomial. See Examples 5 and 6. 36z^2-81y^4

Factor each polynomial. See Examples 5 and 6. (a+b)^2-16

In Exercises 1–68, factor completely, or state that the polynomial is prime. (c + d)⁴ − 1

Factor each polynomial. See Examples 5 and 6. (p-2q)^2-100

In Exercises 45–68, use the method of your choice to factor each trinomial, or state that the trinomial is prime. Check each factorization using FOIL multiplication.15x² + 111xy − 14y²

In Exercises 1–68, factor completely, or state that the polynomial is prime. p³ − pq² + p²q − q³

In Exercises 45–68, use the method of your choice to factor each trinomial, or state that the trinomial is prime. Check each factorization using FOIL multiplication.15a² − ab − 6b²