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3 votes
Expand & simplify
(x + 3) (x+ 1)

User Haozhe Xie
by
8.4k points

1 Answer

7 votes
Using the distributive property (FOIL), multiply x and x to get x^2, x and 1 to get x, 3 and x to get 3x, and 3 and 1 to get 3. Then, you add these terms (x^2 + x + 3x + 3). Simplify like terms to get x^2 + 4x + 3. The final answer is x^2 + 4x + 3.
User Dphans
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