Algebra Practice Test

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Question: 1 / 400

Calculate the value of the expression 3√(x^2) when x = -4.

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12

To evaluate the expression 3√(x^2) when x = -4, first, we substitute -4 for x.

The expression becomes:

3√((-4)^2)

Calculating (-4)^2 gives us 16. Now, we substitute this value back into the expression:

3√(16)

Next, we find the square root of 16, which is 4. Now, we multiply this result by 3:

3 * 4 = 12.

Thus, the final value of the expression 3√(x^2) when x = -4 is 12, confirming that the correct answer is indeed 12.

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