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Factorise:1 - 64a³ - 12a + …

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Factorise:1 - 64a³ - 12a + 48a²

Posted by Poonam Nandiwale 4 years, 9 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 4 years, 9 months ago

We have,
1 - 64a³ - 12a + 48a² = (1)³ - (4a)³ - 3(1)(4a)(1 - 4a)
= (1 - 4a)³ [{tex}\because{/tex} a³ - b³ - 3ab(a - b) = (a - b)³]
= (1 - 4a)(1 - 4a)(1 - 4a)

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CBSE > Class 09 > Mathematics