+ - =0

the base is 5.

how do you do that on here? i can't seem to understand how to work the math tags button so I can put othedr notations like sigma or the integral sign...

anyways, i got the answer to be x=4.82 or x=-0.83

is that right?

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- Jan 22nd 2010, 01:29 PMbhuangSolve the logarithm.
+ - =0

the base is 5.

how do you do that on here? i can't seem to understand how to work the math tags button so I can put othedr notations like sigma or the integral sign...

anyways, i got the answer to be x=4.82 or x=-0.83

is that right? - Jan 22nd 2010, 02:12 PMSoroban
Hello, bhuang!

Click on "Quote" to see my code . . .

Quote:

i got the answer to be: or

Is that right? . . . . almost

That negative root is extraneous . . .

Normally, we are not allowed logs of negative quantities.