Fireburst4 Fireburst4

12-11-2020
Mathematics

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solve by factoring x^2 -9 =0

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LunarEclipses LunarEclipses

12-11-2020

x = 3 and -3

X^2 - 9 = 0
(X+3)(X-3) = 0

X + 3 = 0
X = -3

X - 3 = 0
X = 3

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