SOLUTION: Solve the absolute value equation. 4) |x2 - 9| = 7
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Question 128124
This question is from textbook
college Algebra
:
Solve the absolute value equation.
4) |x2 - 9| = 7
This question is from textbook
college Algebra
Answer by
stanbon(75887)
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|x^2 - 9| = 7
x^2-9 = 7 or x^2-9 = -7
x^2 = 16 or x^2 = 2
x=4 or x= -4 or x = sqrt(2) or x= -sqrt(2)
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Cheers,
Stan H.