factorise each of the following 9x²-1/144
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Answer:
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Answer:
(3x + 12)(3x - 12)
Step-by-step explanation:
9x²-1/144
(3x)²-(1/12)² [a²-b² = (a+b)(a-b)]
(3x + 1/12)(3x - 1/12)
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