Question

Factorize 9a^2 – 1.

please answer

Answer 1

Answer:

${9a}^{2} - 1$

${(3a)}^{2} - {1}^{2}$

$from \: fromlua \: {x}^{2} - {y}^{2} = (x + y)(x - y)$

$(3a + 1)(3a - 1)$

Answer 2

Answer:

(3a + 1 ) . ( 3a - 1 )

is the answer

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