Algebra Ch 47: Logarithmic Functions (10 of 26) Solve for b=?

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We will solve for the base=b=? of a logarithmic function.

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[aram]

Just enough to remember that log means exponent. And base remains base. Eveything is then immediately clear. What has to be raised to 1/2 to give 5?

[lgl_noname]

Also, one will also note by multiplying both side by 2, one gets 2log(5)= log(25)=1, making 25 the base.

[debarghyaray]

Sir, why is x=-b/2a in quadratic equations? Please tell.