Understanding GCF, LCM, and Multiplying Binomials with FOIL Method
Explore how to find the Greatest Common Factor (GCF) and Least Common Multiple (LCM) of numbers, along with mastering the FOIL method for multiplying binomials. Learn the distributive property and examples to enhance your math skills.
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Presentation Transcript
Bell Ringer Find the GCF and the LCM of each set: 34 and 56 12 and 30 32a2b and 33abc
Multiplying Binomials using FOIL Mr. Haupt CC.2.1.8.E.1
Distributive Property When multiplying things inside a set of parentheses by what is outside, we used the distributive property. For example 3(x + 1) But what if there is another set of parentheses? How would we do (x + 2)(x 3)?
F.O.I.L. The FOIL method is an acronym for how we use the distributive property when there are binomials involved. The letters of FOIL tell us what to multiply and in what order. F First O Outer I Inner L - Last
Example 1 (x + 4)(x 5)
Example 2 (5x + 2)(3x + 5)
Example 3 (-9x 4)(-x + 7)
Example 4 (4x + 1)(4x 1)
