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# Algebra/Algebra 1

Question
Simplify the expression

625^-3/4

The powers of 5 are 5, 25, 125, 625 ... so it is 5^4.
When we take 625^(1/4), this is 5.

The problem can be rewritten as (625^(1/4))^-3.
Using what I just said, that is the same as 5^-3.

When the power is negative, it moves it from the numerator to the denominator,
so it is 1/5^3.  Looking back at the list, 5^3 = 125, so that is 1/125.

Algebra

Volunteer

#### Scott A Wilson

##### Expertise

Any algebraic question you've got. That includes question that are linear, quadratic, exponential, etc.

##### Experience

I have solved story problems, linear equations, parabolic equations. I have also solved some 3rd order equations and equations with multiple variables.

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Documents at Boeing in assistance on the manufacturiing floor.

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MS at math OSU in mathematics at OSU, 1986. BS at OSU in mathematical sciences (math, statistics, computer science), 1984.

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Both my BS and MS degrees were given with honors.

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Students in a wide variety of areas since the 80's; over 1,000 of them have been in algebra.