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Expand the following and collect like terms: (x+5)(x+5)​

User Ninsau
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2 Answers

5 votes

Our answer is x² + 10x + 25.


\Large\texttt{Explanation}

We are asked to expand the following expression:

(x + 5)(x + 5)

In order to multiply two binomials, use FOIL:

  • F = first
  • O = Outside
  • I = Inside
  • L = Last

multiply the first terms -

x * x = x^2

multiply the outside terms -

x * 5 = 5x

multiply the inside terms -

5 * x = 5x

multiply the last terms -

5 * 5 = 25


\hookrightarrow\qquad\bf{x^2+5x+5x+25}


\hookrightarrow\qquad\boxed{\bf{x^2+10x+25}}

User Reuelab
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7.7k points
5 votes
To expand and collect like terms for (x+5)(x+5), we can use the distributive property. Let's multiply each term in the first set of parentheses by each term in the second set of parentheses:

(x+5)(x+5) = x(x) + x(5) + 5(x) + 5(5)

Now, let's simplify and collect like terms:

x^2 + 5x + 5x + 25

Combining like terms, we get:

x^2 + 10x + 25

So, the expanded form of (x+5)(x+5) is x^2 + 10x + 25. If you have any more questions or need further assistance, feel free to ask
User Anatoli Klamer
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8.6k points