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3 votes
Simplify (x+3)^2 - 6x

User Jaesung
by
8.0k points

2 Answers

1 vote

Answer:

The answer is x² + 9.

Explanation:

First, you have to get rid of bracket of square :


{(a + b)}^(2) \: ⇒ \: {a}^(2) + 2ab + {b}^(2)


{(x + 3)}^(2)


= (x + 3)(x + 3)


= {x}^(2) + 6x + 9

Next, you can simplify :


{x}^(2) + 6x + 9 - 6x


= {x}^(2) + 9

User Onkeltem
by
8.5k points
3 votes

Answer:


{x}^(2) + 9

Explanation:


{(x + 3)}^(2) - 6x \\ \\ = {x}^(2) + {3}^(2) + 2 * x * 3 - 6x \\ \\ = {x}^(2) + 9 + 6x - 6x \\ \\ = {x}^(2) + 9

User EEAH
by
7.3k points

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