Stephanie P. answered 10/07/12
Certified Teacher
Yes you would use the FOIL method
3x(x) + 3x(4) + 2x + 2(4)
3x2+ 12x + 2x + 8
3x2 + 14x + 8
Hope this helps!
Lexi N.
asked 10/07/12I think you solve with foil method?
Stephanie P. answered 10/07/12
Certified Teacher
Yes you would use the FOIL method
3x(x) + 3x(4) + 2x + 2(4)
3x2+ 12x + 2x + 8
3x2 + 14x + 8
Hope this helps!
Jon C. answered 10/11/12
Former Math Curriculum Specialist
So yes, the FOIL method works:
"3x(x) + 3x(4) + 2x + 2(4)
3x2+ 12x + 2x + 8
3x2 + 14x + 8" -Stephanie P.
Though many students cannot use methods such as FOIL because if confuses them even more. SO, another way to go about this is using what you know about the Distributive Property. The only difference here is that you will apply the Distributive Property TWICE. Once for "3x" and once for "2" :
3x(x+4) + 2(x+4)... do you see why this works? Again, its kind of like the distributive property where (x+4) is distributed to the 3x AND the 2.
So we simplify: 3x(x+4) + 2(x+4) = 3x2+12x + 2x + 8 = 3x2 +14x + 8. DONE!
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