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Use the square root property to solve x^2-9=0
Please help and please show work if you can

User GKP
by
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2 Answers

2 votes

Answer: x = 3, x= - 3

Step-by-step explanation:

x^2 - 9 = 0

=> x^2 = 9

=> x = 3, x= - 3

User LionC
by
4.6k points
10 votes

Answer:

x = 3 or -3

Explanation:

So you have the equation x² - 9 = 0

Move the 9 to the other side: x² = 9

Then take the square root of both sides:
\sqrt{x^(2) } = ±
√(9)

x = ±
√(9) = ±3

x = 3 or -3

User Hertzsprung
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4.8k points