Evaluate the innermost grouping symbol first and make your way outwards.
Numerical Expression
They are terms of an expression or an equation
A
You get different values for an expression by changing the placement of the grouping symbols.
When you have an expression you have to simplify by eliminating all grouping symbols and combining like terms.
Numerical 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.
To evaluate an expression means to find its numerical value. A power consists of a base and an exponent. According to the order of operations, operations inside parentheses (or other grouping symbols) are performed first, followed by the evaluation of powers ... then (*/) and (+-).
It is an expression.
They are terms of an expression or an equation
A
That type of sentence is called a mathematical expression.
You use grouping Symbols to separate that problem from the expression or to tell you to do that problem in the expression first
It's possible to perform other operations first. But if you try it, there's a muchbigger chance that you'll get all tangled up and your result will be wrong.
Completely factor the expression by grouping 50cp-4wz+5pw-40cz
You get different values for an expression by changing the placement of the grouping symbols.
When you have an expression you have to simplify by eliminating all grouping symbols and combining like terms.