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Popular >

simplify log_{25}(125)

Solution

simplify

lo g_{25} (125)

Solution

\frac{3}{2}

+1

Solution steps

lo g_{25} (125)

Factor the number:

25 = 5^{2}

= lo g_{5^{2}} (125)

Apply log rule:

lo g_{a^{b}} (x) = \frac{1}{b} lo g_{a} (x), a > 0

lo g_{5^{2}} (125) = \frac{1}{2} lo g_{5} (125)

= \frac{1}{2} lo g_{5} (125)

Factor the number:

125 = 5^{3}

= \frac{1}{2} lo g_{5} (5^{3})

Apply log rule:

lo g_{a} (a^{b}) = b

lo g_{5} (5^{3}) = 3

= \frac{1}{2} \cdot 3

\frac{1}{2} \cdot 3 = \frac{3}{2}

= \frac{3}{2}

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x^{2} - 2 x - 2 < 0

Frequently Asked Questions (FAQ)

What is log_{25}(125) ?
The solution to log_{25}(125) is 3/2