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Given x^2/(3^2) = 3/x, find x.
I quickly think of cross-multiplication.
(x^2)(x) = (3^2)(3)
x^3 = 9 • 3
x^3 = 27
Take the cube root on.both sides of the equation.
cuberoot{x^3} = cuberoot{27}
x = 3
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Correct.
Bob
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Correct.
Bob
Of course, not all questions will be this simple but returning to basic math occasionally is a good idea.
The best things in life are not always free.
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