## Homework Hints 6-2

**Problem 1**

Look for a common factor, then look to see if it is a difference of squares, and finally check to see if it is a trinomial.

**Problem 2**

A difference of squares has the form *a*^{2} – … See the whole entry

**Problem 1**

Look for a common factor, then look to see if it is a difference of squares, and finally check to see if it is a trinomial.

**Problem 2**

A difference of squares has the form *a*^{2} – … See the whole entry

Write out a derivation of the quadratic formula.

**References:**

You can check almost any high school algebra book.

Find any replacements for* x*, *y*, and *z* such that* xn* +* yn * = *zn*, … See the whole entry

**Video:**

Factoring a trinomial (time: 2:36)

… See the whole entry

**Video:**

Evaluate an expression (time: 7:51)

**Videos:**

Solve Linear Equations (time: 6:46)

Solve Quadratic Equations (time: 12:03)

… See the whole entry

**Video:**

Linear Inequalities (time: 6:25)

… See the whole entry

**Video:**

Math Strategies (time: 7:37)

… See the whole entry

**Video:**

Ratios and Proportions (time: 3:50)

… See the whole entry

**Videos:**

Adding and Subtracting Polynomials (time: 7:47)

Multiplying Polynomials (time: 1:53)

Binomial Theorem (time: 9:40)

Using areas to multiply polynomials (time: 9:40)

… See the whole entry

Here is some practice factoring trinomials using FOIL.

http://www.mathwizz.com/algebra/help/help3.htm

Here is some practice factoring difference of squares:

http://www.purplemath.com/modules/specfact.htm

This excellent Khan Academy site give extra practice in factoring:

https://www.khanacademy.org/math/algebra/polynomial-factorization/factoring-quadratics-1/e/factoring_polynomials_1… See the whole entry