(4a+3b)² -(4a-3b)²+48ab

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Solution

( 4a + 3b )² - (4a-3b )² +48ab
= 16a²+ 24ab + 9b² - (16a² - 24ab + 9b²) + 48ab
= 16a²+ 24ab + 9b² - 16a² + 24ab - 9b² + 48ab
= 96ab

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Factorize:

$25 (a - 5 b)^{2} - 4 (a - 3 b)^{2}$

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