Factorise: 4x raise to power 2 (minus) 64
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4x² - 64
= 4x² - (8)²
= (4x + 8) (4x - 8) ANS
~a²-b² = (a+b) (a-b)
= 4x² - (8)²
= (4x + 8) (4x - 8) ANS
~a²-b² = (a+b) (a-b)
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