Monthly Archives: February 2010

Algebra: Chapter 6, Lesson 9, page 291. Using Equations that Factor There are 3 steps to using the problem solving guidelines below to help solve problems involving writing and solving an equation. They are: 1. Understand the problem What am … Continue reading →

Algebra: Chapter 6, Lesson 8, page 286. Solving Equations by Factoring The principle of zero products states that: for any rational numbers a and b, if the product `ab = 0`, then `a=0` or `b=0` or both `a` and `b … Continue reading →

Algebra: Chapter 6, Lesson 7, page 283. Factoring: A General  Strategy To factor polynomials: Always look first for a common factor Then look at the number of terms 2 terms – determine whether you have a difference of 2 squares … Continue reading →

Algebra: Chapter 6, Lesson 6, page 281. Factoring by Grouping Factoring by grouping works for polynomials that are greater than trinomials. Grouping usually works with polynomials that have 4 terms. All that you have to do is group the polynomials … Continue reading →

Algebra: Chapter 6, Lesson 5, page 278 – DAY#2 Factoring `ax^2 + bx + c Here is a link to my podcast on iTunes about the BOX and CROSS METHODS. ¦ ¤ ¦¦ ¤ ¦¦ ¤ ¦¦ ¤ ¦¦ ¤ … Continue reading →

Algebra: Chapter 6, Lesson 5, page 278 Factoring `ax^2 + bx + c I don’t like the approach the textbook uses to factor generalized trinomials or quadratics. Remember that these are of the form `ax^2 + bx + c`. Using … Continue reading →

Algebra: Chapter 6, Lesson 4, page 273 – DAY #3 Factoring quadratics of the form … `x^2 + bx +c ` – see Tuesday’s discussion. The BOX METHOD is linked here, all you need is a computer with sound. You … Continue reading →

Algebra: Chapter 6, Lesson 4, page 273 – DAY #2 Factoring quadratics of the form … `x^2 + bx +c ` – see yesterday’s discussion. The BOX METHOD is linked here, all you need is a computer with sound. You … Continue reading →

Algebra: Chapter 6, Lesson 4, page 273. Factoring quadratics of the form … `x^2 + bx +c ` MrE uses the BOX METHOD OF FACTORING for lessons 4 and 5. You are welcome to use the techniques in the textbook, … Continue reading →

Algebra: Chapter 6, Lesson 3, page 270 Trinomial Squares We are going backward again, using the properties: `(a + b)(a + b) = a^2 + 2ab + b^2 = (a + b)^2` `(a – b)(a – b) = a^2 – … Continue reading →