Question

Write the factors of 16a²-9​

Answer 1

16a² - 9

( 4a - 3 ) ( 4a + 3 )

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Answer 2

$\huge{ \green{ \underline{ \underbrace{answer}}}}$

$16 {a}^{2} - 9 \\ \implies16 {a}^{2} + 12a + 12a - 9 \\ \implies4a(4a + 3) - 3(4a + 3) \\ \implies(4a - 3 ) \: (4a + 3)$

$\huge{ \sf{ \green{ \underbrace{ \underline{hence \: verified}}}}}$

$(4a - 3) \: (4a + 3)$