Algebra, Chapter 6-5 and 6-6, p 278 and p281
Factoring `ax^2 + bx + c` (Friday)
See yesterday’s notes on the BOX and CROSS method. Check out the podcast to see the lesson again.
Factoring by Grouping (Monday)
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 into binomials using parantheses. But, remember, that not all 4 term expressions can be factored this way.
Example: `6x^3 + 9x^2 + 4x + 6` becomes `(6x^3 + 9x^2) + (4x +6)`.
We can factor out a `3x^2` from the first binomial and a `2` from the second binomial leaving us with `(3x^2)(2x + 3) + 2(2x +3)` or factoring out the `(2x +3)`, we have `(2x +3)(3x^2 + 2)`.
Here is a link from purplemath.com. She calls it factoring in “pairs”.
Math-8, Chapter 8 Review (Friday)
Form 1A Test Review
Today we reviewed and worked on the practice test for Monday real-deal. We are to finish the practice test and bring questions on Monday!
Chapter 8 TEST (Monday)