Which polynomial is the product of (3x + 2) and (x + 2)?

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15-07-2016
Mathematics

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Which polynomial is the product of (3x + 2) and (x + 2)?

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15-07-2016

either use foil or distributive proeprty
some like foil because they can't remember the order to multiply, I will teach that

FOIL
tells order to multiply
First terms
Outside terms
Inside terms
Last terms

(3x+2)(x+2)
First:3x times x=3x^2
Outside: 3x times 2=6x
Inside: 2 times x=2x
Last: 2 times 2=4

add them
3x^2+6x+2x+4
3x^2+8x+4

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