(x - 3)²=?
- x² + 9
- x² + 3 + 6x
- x² + 9 - 6x
- None of these
Explanation
(x - 3)² = (x - 3)(x - 3)
Use formula: (a - b)² = a² - 2ab + b²
Here a = x, b = 3
So: x² - 2(x)(3) + 3² = x² - 6x + 9
Rearranged: x² + 9 - 6x
Last verified on 16-06-2026
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