'Twas the Evening of Christmas

'Twas the Evening of Christmas

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Matematika sederhanakanlah (x²+9-8x²-x)​

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sederhanakanlah (x²+9-8x²-x)​

x² + 9 - 8x² - x

= x² - 8x² - x + 9

= -7x² - x + 9

:)

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