Question 1058809
X-2square root of x-3 =3
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Since you did not use parentheses your post is difficult to interpret.
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This is one version of what you might mean::
x - 2*sqrt(x) - 6 = 0

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This is a quardatic with variable sqrt(x)
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Using the quadratic formula you get:
sqrt(x) = [2 +- sqrt[4-4*-6]/2
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sqrt(x) = [2+- sqrt(28)]/2
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sqrt(x) = [1 +- sqrt(7)]
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x = (1+sqrt(7))^2 or x = (1-sqrt(7))^2
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Cheers,
Stan H.
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sqrt(x) = [2 +- 2sqrt(7)]/2