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Which expression is equivalent to $9u + u$ ? $\newline$ Choices: $\newline$ (A) $10u$ $\newline$ (B) $11u$ $\newline$ (C) $u + 10$ $\newline$ (D) $u^{10}$

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Identify equivalent expressions involving exponents I

Full solution

Q. Which expression is equivalent to

9u + u

?

\newline

Choices:

\newline

(A)

10u

\newline

(B)

11u

\newline

(C)

u + 10

\newline

(D)

u^{10}

Combine like terms: Step $1$ : Combine like terms. $9u + u = (9+1)u = 10u$
Match with choices: Step $2$ : Match the result with the given choices. $\newline$ $10u$ corresponds to choice (A) $10u$

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