Videos, worksheets, stories and songs to help Grade 7 students learn about exponent rules.

Related Topics:

More Grade 7 Math Lessons | More Exponent Lessons | Exponent Worksheets | Exponent Games

In these lessons, we will learn five rules of exponent and how to use them.

The rules of exponent are:

Product Rule:

When we multiply two powers that have the same base, add the exponents. 3^{2} x 3^{5} = 3^{7}

Power Rule:

When we raise a power to a power, multiply the exponents.

(3^{2})^{5} = 3^{10}

Quotient Rule:

When we divide two powers with the same base, we subtract the exponents.

3^{6} ÷ 3^{2} = 3^{4
}

Zero Rule:

Any nonzero number raised to the power of zero equals 1.

54^{0 }= 1

Negative Rule:

Any nonzero number raised to a negative power equals its reciprocal raised to the opposite positive power.

2^{-3} = 1/2^{3}

**Introduction to exponent rules**
**Exponent Rules Song**

Learn exponent rules through music!

**Basic Exponent Properties**

This video will illustrate the rules with a few examples.**Simple rules of when to add or multiply the exponents in common bases**
**Rules of exponents set to music**

**How to apply the rules of exponents?**

Examples:

Simplify the following expressions:

a) (2x^{3}^{4})(3xy^{5})^{2}

b) (x^{5}y^{9})(-5x^{2}y^{2})^{4}
Examples:

Simplify the following expressions:

a) (x^{2}/2)^{4}

b) (4n^{6})^{2}
Examples:

Simplify the following expressions:

a) (3x^{2}y^{4})^{5}/(3x^{3}y^{7})^{3}

b) (5xy^{2})^{4}/(5x^{2}y)^{6}
**How to evaluate expressions with negative exponents?**

Examples:

Simplify the following expressions:

a) (8a^{6}b^{-4})/(24a^{-8}b^{9})

b) (10a^{2}b^{6})(50a^{-3}b^{-4})

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

Related Topics:

More Grade 7 Math Lessons | More Exponent Lessons | Exponent Worksheets | Exponent Games

In these lessons, we will learn five rules of exponent and how to use them.

The rules of exponent are:

Product Rule:

When we multiply two powers that have the same base, add the exponents. 3

Power Rule:

When we raise a power to a power, multiply the exponents.

(3

Quotient Rule:

When we divide two powers with the same base, we subtract the exponents.

3

Zero Rule:

Any nonzero number raised to the power of zero equals 1.

54

Negative Rule:

Any nonzero number raised to a negative power equals its reciprocal raised to the opposite positive power.

2

Learn exponent rules through music!

This video will illustrate the rules with a few examples.

Examples:

Simplify the following expressions:

a) (2x

b) (x

Simplify the following expressions:

a) (x

b) (4n

Simplify the following expressions:

a) (3x

b) (5xy

Examples:

Simplify the following expressions:

a) (8a

b) (10a

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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