How do I simplify this expression: 5 / sqrt x-3 ???

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How do I simplify this expression: 5 / sqrt x-3 ???

2007-08-01 14:41:41 · 4 answers · asked by SadToday22 3 in Science & Mathematics ➔ Mathematics

4 answers

5 / (√(x -3) : original equation
(5){√(x - 3)} / {√(x - 3)} {(√(x - 3)} : multiply both top and bottom by √(x - 3)
The denominator will rationalize, and the root end up in the numerator instead :
5{√(x - 3)} / x - 3

2007-08-01 14:57:43 · answer #1 · answered by Don E Knows 6 · 0⤊ 0⤋

You want to get the sqrt out of the denominator, so multiply by sqrt x-3 / srt x-3, giving 5 sqrt x-3 / x-3

2007-08-01 21:54:49 · answer #2 · answered by Judy 7 · 0⤊ 0⤋

That's about as simple as it's going to get . . .

2007-08-01 21:44:09 · answer #3 · answered by Anonymous · 0⤊ 0⤋

do you now how to use log? X-3log5

2007-08-01 21:45:46 · answer #4 · answered by Peter K 3 · 0⤊ 0⤋