Question: Solve: \dfrac{x -9}{\sqrt{x}+3} = 1
Solution:
Given,
\dfrac{x -9}{\sqrt{x}+3} = 1
or, \dfrac{(\sqrt{x})^2 -(3)^2}{\sqrt{x}+3} = 1
or, \dfrac{(\sqrt{x} + 3)(\sqrt{x} - 3) }{\sqrt{x} + 3} = 1
or, \sqrt{x} - 3 = 1
or, \sqrt{x} = 3 +1
or, \sqrt{x} = 4
[ Squaring both sides ]
or, (\sqrt{x})^2 = 4^2
\therefore x = 16
= Answer
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