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If 3a2 = b2 ≠ 0, then the value of (a + b)3 - (a - b)3 is (a + b)2 - (a - b)2
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3b 2
- b
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b 2
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2b 3
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Correct Option: A
| Expression = | ||
| (a + b)2 + (a - b)2 |
| Expression = | ||
| (a2 + b2 + 2ab) + (a2 + b2 - 2ab) |
| Expression = | ||
| (a2 + b2 + a2 + b2) |
| Expression = | ||
| 2(a2 + b2) |
| Expression = | ||
| 2(a2 + b2) |
| Expression = | |||||
 | + b2 |  | |||
| 3 | |||||
| Expression = | |||||
| | ||||
| 3 | |||||
| Expression = | = | ||
| 4 | 2 |
