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Multiple Choice
If , which of the following is the value of ?
A
B
C
D
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Verified step by step guidance
1
Step 1: Understand the problem. The function f(x) = x^3 is given, and you are asked to evaluate f(-2). This means substituting -2 into the function f(x).
Step 2: Substitute -2 into the function. Replace x in f(x) = x^3 with -2, resulting in f(-2) = (-2)^3.
Step 3: Recall the rule for exponents. When raising a negative number to an odd power, the result remains negative. Therefore, (-2)^3 means multiplying -2 by itself three times: (-2) * (-2) * (-2).
Step 4: Perform the multiplication step by step. First, calculate (-2) * (-2), which equals 4 because multiplying two negative numbers results in a positive number. Then multiply the result (4) by -2, which gives the final value of f(-2).
Step 5: Compare the calculated value of f(-2) with the given answer choices (-8, 4, -6, 8) to identify the correct answer.