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Sophie [7]
4 years ago
14

Can someone tell me how so solve this?

Mathematics
2 answers:
frutty [35]4 years ago
8 0
X^2−9=0
Add 9 to both sides.

x^2−9+9=0+9

x^2=9

Take square root.

x=±√9

x=3 or x=−3

Answer:
x=3 or x=−3
Licemer1 [7]4 years ago
3 0
Algebra answer A. x = _^+3
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