Simplify (3x^2)^3.
Answer and explanation
Correct answer: D. 27x^6
- Step 1: Cube each factor: 3^3 = 27 and (x^2)^3 = x^6. Answer: 27x^6. Why not the others: 9x^6: The whole bracket, including the 3, is cubed. 27x^5: The power 2 is multiplied by 3, not added. 3x^6: The coefficient 3 must also be cubed.
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