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Factorise: 4x2 – 9y2 |
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Answer» 4x2 – 9y2 can be written as (2x)2 – (3y)2 By using the formula a2 – b2 = (a+b) (a-b) Now solving for the above equation (2x)2 – (3y)2 = (2x+3y) (2x-3y) |
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