Question

Multiply (a +3) (a + 1)​

Answer 1

a²+4a+3 is the right answer.

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Answer 2

Answer:

$(a + 3)(a + 1) = \\ a(a + 1) +3( a + 1) = \\ {a}^{2} + a + 3a + 3 = \\ {a}^{2} + 4a + 3.$