How do you solve $x - 3 \sqrt{x - 10} = 0$ $x - 3sqrt(x - 10)= 0$ ?

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How do you solve $x - 3 \sqrt{x - 10} = 0$ $x - 3sqrt(x - 10)= 0$ ?

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Answer 1 · 2015-04-20T19:26:34

Try writing it as:
$x = 3 \sqrt{x - 10}$ $x=3sqrt(x-10)$ and square both sides.
You'll get:
$x^{2} - 9 x + 90 = 0$ $x^2-9x+90=0$
solve for $x$ $x$ and check the results by substituting in the original equation.

Answer 2 · 2015-04-20T20:08:45

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How do you solve $x - 3 \sqrt{x - 10} = 0$ $x - 3sqrt(x - 10)= 0$ ?

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