Question

80a^3b-45ab^3 factorise it

Answer 1

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Here is u r Ans ➡

$= 80a {}^{3} b - 45ab {}^{3}$

$= 5ab \times (16a {}^{2} - 9b {}^{2} )$

$= using \: > a {}^{2} - b {}^{2} = (a - b)(a + b)$

$= 5ab \times (4a - 3b)(4a + 3b)$

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