It is an expression.
Numerical Expression
They are terms of an expression or an equation
That type of sentence is called a mathematical expression.
Grouping symbols are symbols such as parentheses or brackets, that indicate that the operations within them should be done first. When an expression contains more than one pair of grouping symbols, the computations in the innermost grouping should be done first.
Evaluate the innermost grouping symbol first and make your way outwards.
Grouping symbols are parentheses such as {}, (), []. They need to be evaluated before other operations. If there are a number of nested parentheses, they must be evaluated starting with the innermost.
an expression
In mathematics, symbols can be categorized into three main groups: operational symbols, relational symbols, and grouping symbols. Operational symbols include those that represent mathematical operations, such as addition (+), subtraction (−), multiplication (×), and division (÷). Relational symbols indicate relationships between values, such as equals (=), greater than (>), and less than (<). Grouping symbols, like parentheses (()), brackets ([]), and braces ({}), are used to organize expressions and clarify the order of operations.
A
Yes. You must perform the operations inside the absolute value first.
I think that it is chemical formula.
You get different values for an expression by changing the placement of the grouping symbols.