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JAMB Mathematics 2021 Paper

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Question : 35

Total: 40

Factorize completely 81a‌4 - 16b‌4

(3a + 2b)(2a - 3b)(9a² + 4b²)
(3a - 2b)(2a - 3b)(4a² - 9b²)
(3a - 2b)(3a + 2b)(9a² + 4b²)
(6a - 2b)(8a - 3b)(4a³ - 9b²)

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