Factorize completely 6ax - 12by - 9ay 8bx - WAEC Mathematics 2015 Question
Factorize completely: 6ax - 12by - 9ay + 8bx
A
(2a - 3b)(4x + 3y)
B
(3a + 4b)(2x - 3y)
C
(3a - 4b)(2x + 3y)
D
(2a + 3b)(4x -3y)
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Correct Option: B
6ax - 12by - 9ay + 8bx
= 6ax - 9ay + 8bx - 12by
= 3a(2x - 3y) + 4b(2x - 3y)
= (3a + 4b)(2x - 3y)
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