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Please help me solve: x=(√5x-6)?
x=(squareroot of 5x-6). Please HELP!! How would I square (squareroot of 5x-6)
5x-6 is under the root sign
5 Answers
- Anonymous1 decade ago
If you square both sides, you get, x^2 = 5x - 6.
Then rearrange this to give x^2 - 5x + 6 =0
This factorizes to give (x-3)(x-2) = 0
and so for this to be true, either of the brackets above must be zero,
Hence (x-3) = 0 and x=3
or (x-2) =0 and x = 2
and so the result is x =2 and x = 3
If you substitue these values in, you can see that these are the correct solutions
- ?Lv 41 decade ago
If 5x - 6 is all under the root sign (which is not clear from your post), then simply square both sides.
x^2 = 5x - 6
Then x^2 - 5x + 6 = 0 . Then factor and solve.
( )( ) = 0
etc.
- 1 decade ago
you need the x's on one side, and the -6 on the other, so i THINK you can just put it like this (6=*squareroot*5x-x)...
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- 1 decade ago
you should define it more clearly i where does the square start and end.
i got it like that: x = (sqrt(5x)-6)
in this case it would be easy, just type into a calculator