Question

Factor this expression x2 - 9

Answer 1

${x}^{2} - 9 \\ \\ = {x}^{2} - {3}^{2} \\ \\ = \red{ \boxed{ \purple{(x - 3)(x + 3)}}}$

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Answer 2

$\huge\underline\mathfrak\red{Solution:}$

$\sf{ {x}^{2} - 9}$

$\sf{ = {x}^{2} - {3}^{2} }$

$\sf{ = (x + 3)(x - 3)}$

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