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Factorise: 12x2 -27 |
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Answer» By simplifying further the above equation is 3(4x2 – 9) By using the formula a2 – b2 = (a+b) (a-b) Now solving for the above equation 3(4x2 – 9) = 3((2x)2 – (3)2) = 3(2x+3) (2x-3) |
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