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simplify (2a+12)(3a+3)+a

need to know if you use FOIL to simplify this problem

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Micayla D. | Math Tutor- Elementary - Algebra - GeometryMath Tutor- Elementary - Algebra - Geome...
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Yes, Foil is key here! First, Outside, Inside, Last! Whenever you see sets of parentheses right next to one another it means to multiply, and if the parentheses include an operation (+,-,*) and variables (a,b,x,y) then we use FOIL to simplify.
Example:
(2x+3)(6x+2)+x
First, focus on the parentheses (PEMDAS)
(2x+3)(6x+2)
Now FOIL,
F: (2x*6x) = 12x^2
O: (2x*2) = 4x
I: (3*6x) = 18x
L:(3*2) = 6
12x^2+4x+18x+6
Simplify, combine like terms
12x^2+22x+6
Don't forget your original equation included +x, so
12x^2+22x+6+x
Simplify
12x^2+23x+6