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How do you factorise 9x²-1?

Updated: 12/14/2022
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Wiki User

14y ago

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Lorenza Kassulke

Lvl 10
3y ago
This answer is:
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Wiki User

14y ago

9x2-1=0

9x2=1

x2=1/9

x=+- 1/3

(3x-1)(3x+1)

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Q: How do you factorise 9x²-1?
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