Question

$(2a + 3b) {}^{2} - 16c {}^{2}$

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Answer 1

$\huge\bold{Answer:}$

( 2a + 3b )² - 16c²

= ( 2a + 3b )² - (4c)²

= ( 2a + 3b - 4c ) ( 2a + 2b + 4c )