Q. What is the value of 18² – 12²?
✅ Correct Answer: (D)
216
Explanation: a² − b² = (a−b)(a+b) = 6×30 = 180 (Correction: 18²=324, 12²=144 → 324−144=180)
Explanation by: Krishna Sharma
a² − b² = (a−b)(a+b) = 6×30 = 180 (Correction: 18²=324, 12²=144 → 324−144=180)