Question

If = (32)−2÷ (67)0, find the value of ()−3. Express the value in exponential form with positive exponent.

Answer 1

Example

Problem

Evaluate.

5x3 if x = 4

5 • 43

Substitute 4 for the variable x.

5(4 • 4 • 4) = 5 • 64

Evaluate 43.

320

Multiply.

Answer

5x3 = 320 when x = 4

Answer 2

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Explanation: