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Solve by finding the square roots: 3x2 - 9 = 3
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5 votes
Solve by finding the square roots: 3x2 - 9 = 3

User Walker Hale IV
by
3.8k points

1 Answer

5 votes

Answer:

x= 2 or x= -2

Explanation:

3x² -9= 3

+9 on both sides:

3x²= 9 +3

Simplify:

3x²= 12

Divide by 3 on both sides:

x² =4

Square root both sides:


x = √(4)

x= 2 or x= -2

User Reticent
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