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Expand and simplify (x+2)(x+1)

User Weeble
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Here, we have to FOIL.

(x+2)(x+1) = x^2+3x+2

Expand and simplify (x+2)(x+1)-example-1
User Hadi
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So first you would need to FOIL the problem (first-outer-inner-last) so you would multiply x by x and get {x²} then you would multiply x by 1 so you would get just plain {x} then multiply 2 by x so to get {2x} then multiply the last terms 2 and 1 together to get {2} so then put it all together = x² + x + 2x + 2 then you add like terms together so you end up with = x² + 3x + 2 as the answer
User Clark
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