Expand and simplify (x+1)(x+9)

asked Mar 1, 2023 233k views

24 votes

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13 votes

Answer:

$\huge\boxed{ \bf\:x^(2) + 10x + 9}$

Explanation:

(x + 1)(x+9)

Let's expand it at first.

$(x + 1)(x + 9)\\= x (x + 9) + 1 (x + 9)\\= x^(2) + 9x + x + 9$

Now, simplify it.

$x^(2) + x + x + 9\\= \boxed{ x^(2) + 10x + 9}$

$\rule{150pt}{2pt}$

Larsks answered Mar 6, 2023

4.7k points

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