C. 9 / 9
ExplanationStep 1: General term is C(3 r)3^(3-r)x^r. Step 2: For x² coefficient is C(3 2)3¹=3×3=9. Step 3: Apply the remaining power of constant carefully.
Step 1: General term C(3 r)3^(3-r)x^r है। Step 2: x² के लिए coefficient C(3 2)3¹=3×3=9 है। Step 3: Constant की remaining power ध्यान से लगाएं।
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