factors of X2 - 9Y2 are _____ and _____
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Step-by-step explanation:
[tex] {x}^{2} - 9 {y}^{2} [/tex]
[tex] = ( {x)}^{2} - ( {3y)}^{2} [/tex]
[tex] = (x + 3y)(x - 3y)[/tex]
[tex]factors \: \: of \: \: {x}^{2} - 9 {y}^{2} \: \: \: are \: \: (x + 3y) \: \: and \: \: (x - 3y).[/tex]