# Mathematical Expressions

## Basic Concept

#### Expressing mathematical relationships algebraically

Example:

Write down an algebraic expression the following statements.

• Subtract twice the variable x from the product of 2x and y
• Multiply the square of y by 2x
• Add the cube root of the product of x and y to 4a

Solution:

• $$2xy - 2x$$
• $$2xy^2$$
• $$\sqrt[3]{xy} + 4a$$