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a^(-n) = (1/a)^n

If a is 0, the above expression would require division by 0, which is not defined.

Q: In the exponential expression a raise to negative n is a positive integer the variable a cannot be equal to zero Explain why this is so?

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Basically, in an exponential expression (or equation) you have the independent variable in the exponent. For example: 5 times 10x The general form of an exponential function can be written as: abx or: aekx where a, b, and k are constants, and e is approximately 2.718. Note that just having a power doesn't mean you have an exponential equation. For example, in x3 the variable does NOT appear in the exponent, so it is not an exponential expression.

Monomials can have negative exponents, if the term for the exponent is not a variable, but if it is a variable with a negative exponent, the whole expression will not be classified. This is so because the definition of a monomial states that, a monomial can be a product of a number and one or more variables with positive integer exponents. I hope that answered your question!

An exponential equation.

-10-18x

An algebraic expression is a type of expression that contains a variable or variables.

Related questions

If the exponent has the variable of time in it, then it will be either exponential growth (such as compound interest for example), or exponential decay (such as radioactive materials, or a capacitor discharging). If the time constant (coefficient of the time variable) is positive then it is growth, if the time constant is negative, then it is decay.

If you are dividing a positive by a negative, yes. If you are dividing a negative by a negative, you will get a positive.

It means that the variable of interest appears as a power in the expression. So, for example, 3x is exponential but x3 is merely cubic. The distinction depends on the position of x.

Basically, in an exponential expression (or equation) you have the independent variable in the exponent. For example: 5 times 10x The general form of an exponential function can be written as: abx or: aekx where a, b, and k are constants, and e is approximately 2.718. Note that just having a power doesn't mean you have an exponential equation. For example, in x3 the variable does NOT appear in the exponent, so it is not an exponential expression.

Monomials can have negative exponents, if the term for the exponent is not a variable, but if it is a variable with a negative exponent, the whole expression will not be classified. This is so because the definition of a monomial states that, a monomial can be a product of a number and one or more variables with positive integer exponents. I hope that answered your question!

There is no specific name. They can be fractions which contain algebraic or trigonometric or non-integral exponential expressions.

While this is not the complete definition, an exponential expression has the variable (for example, "x") in the exponent.

A float variable can store both positive and negative numbers.

Yes

An exponential equation.

A variable expression.

An expression is non polynomial if it has : negative exponent fractional exponent variable exponent in the radicand