Expanding Expressions

To expand an expression by multiplying out powers and products, and applying identities for common functions, select the expression and either:

Then press [Enter].

Examples:

(x + y)3 expand → x3 + 3·x2·y + 3·x·y2 + y3

sin(2x) expand → 2·cos(x)·sin(x)

Optional Arguments:

You can prevent terms in the expression from being expanded by adding a comma and listing the terms as a comma-separated list after "expand." For example, to expand only the second binomial in (x + 1)·(y + z), add the first binomial as an argument.

(x + 1)·(y + z) expand, (x + 1)→ y·(x + 1) + z·(x + 1)

The following link opens a Mathcad worksheet containing live examples of "expand."

QuickSheet - Factoring and Expanding Expressions

Notes:

Related Topics