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Mathematics
Rebecca
14 June, 08:35
Expand & simplify: (x + 1) (x + 3)
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Darrell Luna
14 June, 08:52
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(x+1) (x+3)
Reorder terms: (x+1) (x+3)
Multiply: (x) (x) + (x) (3) + (1) (x) + (1) (3)
Combine them:x^2+3x+x+3
Then combine 3x and x together which equals to 4x
Answer is: x^2+4x+3
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