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Mathematics

Factorise :

54a2b2 - 6

Factorisation

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Answer

54a2b2 - 6

= 6(9a2b2 - 1)

= 6((3ab)2 - (1)2)

Using the formula

[∵ (x2 - y2) = (x + y)(x - y)]

= 6(3ab - 1)(3ab + 1)

Hence, 54a2b2 - 6 = 6(3ab - 1)(3ab + 1)

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