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Select the expressions that are equivalent to $2(3j)$ . $\newline$ Multi-select Choices: $\newline$ (A) $2 + 3j$ $\newline$ (B) $(2j)3$ $\newline$ (C) $2(2j + j)$ $\newline$ (D) $6j$

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Domain and range of square root functions: equations

Full solution

Q. Select the expressions that are equivalent to

2(3j)

.

\newline

Multi-select Choices:

\newline

(A)

2 + 3j

\newline

(B)

(2j)3

\newline

(C)

2(2j + j)

\newline

(D)

6j

Simplify expression: Step $1$ : Simplify the expression $2(3j)$ . $\newline$ Calculation: $2 \times 3j = 6j$ .
Compare with $6j$ : Step $2$ : Compare each choice with $6j$ . $\newline$ (A) $2 + 3j \neq 6j$ . $\newline$ (B) $(2j)^3 = 6j^2 \neq 6j$ . $\newline$ (C) $2(2j + j) = 2(3j) = 6j$ . $\newline$ (D) $6j = 6j$ .

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