Simplify: (3x + 2)(3x − 2)
- 9x² + 4
- 9x² − 4
- 6x² − 4
- 9x² − 2
Explanation
Use the formula: (a + b)(a − b) = a² − b²
Here, a = 3x and b = 2
= (3x)² − (2)²
= 9x² − 4
Related MCQs
- 2x² + 4 = 9x
- 2x² + 9 = 4x
- 2x² + 9 = 4x
- x² + 4 = 9x
Use the formula: (a + b)(a − b) = a² − b²
Here, a = 3x and b = 2
= (3x)² − (2)²
= 9x² − 4
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