sqrt{x-1}-5/\sqrt{x-1}=0
\[\sqrt{x-1}-5/\sqrt{x-1}=0\]
Did you mean \(\huge\color{darkblue}{\sqrt{x-1}-\frac{5}{\sqrt{x-1}}=0?}\)
yeessss !
Okay, awesome!
i will give you a medal !
Solve for x over the real numbers: \[\large \sqrt{x-1}-\frac{5}{\sqrt{x-1}} = 0\]Isolate sqrt(x-1) to the left hand side in order to cross multiply. Add \(\large \frac{5}{\sqrt{x-1}}\) to both sides: \[\large \sqrt{x-1} = \frac{5}{\sqrt{x-1}}\]Multiply both sides by an expression to clear fractions. Cross multiply: \[\large x-1 = 5\]Solve for x. Add 1 to both sides Which leaves you with..?
how do the \[\sqrt{x-1}\] 's cancel out ?
Because if \(\sqrt{x-1}-\frac{5}{\sqrt{x-1}}=0\), then \(\sqrt{x-1}-\sqrt{x-1}=0\) or \(\sqrt{x-1}=\frac{5}{\sqrt{x-1}}\)
but if you cross multiply you would times |dw:1408755655453:dw|
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