Monthly Archives: February 2009

Day 100 – February 4

Posted on February 3, 2009 by admin

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 →

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Day 99 – February 3

Posted on February 3, 2009 by admin

Algebra: Chapter 6, Lesson 2, page 266 Difference of 2 squares For a binomial to be a difference of 2 squares, 2 conditions must be met. There must be 2 terms, both must be square (e.g., `4x^2` and `9x^4`) There … Continue reading →

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Day 98 – February 2

Posted on February 2, 2009 by admin

Algebra: Chapter 6, Lesson 1, page 262. Factoring Polynomials Divisibility Rules A number is divisible by the numbers below if the following rules hold: 2, if the last digit is an even number 3, if the sum of the digits … Continue reading →

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