Algebra: Factorisation by Cross Method

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Factorisation by SPECIAL PRODUCT (A+B)(A-B)

As discussed in class, here is the solution:

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Algebra (Method 2) Factorisation by GROUPING

We attempted Study Notes (p19) during lesson. 

Here's the set of answers for reference. 

We'll further the discussion in the next lesson.

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Algebra (Method 1) Factorisation by Common Factors

Watch the following clips

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Factorisation by Common Factors: Pyramid Game

As discussed in class: