###### Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

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# Simplifying Expressions with Exponents - Problem 7

Alissa Fong
###### Alissa Fong

MA, Stanford University
Teaching in the San Francisco Bay Area

Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts

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The placement of a negative sign in an exponential expression is a very tricky skill- if a negative base in parentheses is being raised to a power, then the exponent applies to the negative. BUT, if there are no parentheses, then just the base integer gets the exponent, and the negative is like multiplying by negative one after you apply the exponent. If the negative sign is in the exponent itself, then the base changes where it is in the fraction- tops will move to the bottom and bottoms will move to the top.

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