Expand

Expands expressions and removes parentheses.

Syntax

expand(Expression)
expand(Expression, Variable)
expand(List)
expand(List, Variable)
expand(Matrix)
expand(Matrix, Variable)

Examples

Expanding expressions

The expand command opens parentheses and rewrites expressions.

Binomial expansion with slider

Explore the coefficients and terms of the binomial expansion by changing the exponent (n) with a slider. Set the slider step to 1 (integer) to see how the coefficients from Pascal's triangle are formed for each power.

Permutations

Permutations can be calculated using factorials or directly with the nPr command. You can find the command in the menu under 5: Probability > 2: Permutations. CAS commands can also be used in these calculations.

Simplifying logarithmic expressions

Many logarithmic expressions can be simplified simply by pressing Enter. If the expressions include variables, it is often necessary to define a domain to allow simplification. You can also try using expand and factor. These tools can be helpful, but may sometimes lead to unwanted forms, such as factorizations of base numbers.