# Identity Property Of Multiplication with Example

The Identity Property of Multiplication states that any number multiplied by 1 will equal the original number. This property holds true for both real and complex numbers. In mathematical terms, for any number a, a * 1 = a. The identity element for multiplication is 1, as multiplying any number by 1 will not change its value.

## Identity Property Of Multiplication With Examples

• Identify the equation or expression to be simplified. Example: 2x + 4
• Multiply both sides of the equation or expression by 1. Example: (2x + 4) * 1 = 2x + 4 * 1
• Replace 1 with its identity property. Example: (2x + 4) * 1 = 2x + 4 * 1 = 2x + 4
• Simplify the equation or expression, if possible. Example: (2x + 4) * 1 = 2x + 4
• Check the solution to ensure it is correct. Example: The solution is correct, as both sides of the equation are equal.

Note: The multiplication identity property can also be used to isolate a variable or to determine if a number is a unit (i.e. has an inverse). The steps would be similar, but the focus would be on isolating the variable or determining if a number is a unit.

The identity property has several uses in mathematics, including:

1. Simplifying expressions: The identity property can be used to simplify expressions by multiplying both sides of an equation by 1.
2. Solving equations: The identity property can be used to isolate a variable by multiplying both sides of an equation by 1.
3. Determining if a number is a unit: The identity property can be used to determine if a number is a unit (i.e. has an inverse) by checking if it multiplied by 1 results in the original number.
4. Understanding the concept of zero product property: The identity property is related to the zero product property, which states that if a * b = 0, then either a = 0 or b = 0.
5. Understanding inverses: The identity property is related to the concept of inverses. As the inverse of a number is defined as the number that, when multiplied by the original number, results in 1.

#### What is the Identity Property of Multiplication The purpose of the multiplicative identity property is to provide a fundamental property of numbers. That is used in a variety of mathematical operations and concepts. This property helps to simplify expressions, solve equations, understand the concept of zero product property, and determine if a number has an inverse.

It also serves as a building block for more advanced mathematical concepts. Such as linear algebra and abstract algebra. By having a basic understanding of the identity property of multiplication, students, and mathematicians can more easily understand and manipulate numbers and equations.

In conclusion, the identity property is a fundamental property of numbers. That plays a crucial role in mathematics. It states that any number multiplied by 1 will equal the original number. The identity element for multiplication is 1.