algebraically
C1Pronunciation
UK
- /ˌældʒɪbrˈeɪɪklɪ/
US
- /ˌældʒəˈbreɪɪkli/
Description
- Using algebraic methods
- by algebraic manipulation
- in algebraic terms
- via algebraic rules
"Algebraically" means using the principles of algebra—specifically, manipulating symbols and equations—to solve problems or express relationships. It is more than just plugging numbers into formulas; it is about understanding how those formulas work and being able to rearrange them to find unknown values. You might simplify an expression algebraically, prove a theorem algebraically, or solve for x algebraically.
Think of it like building with blocks: algebra provides the pieces (symbols) and the instruction manual (equations). Solving problems algebraically is the act of carefully assembling those pieces according to the rules to create a result. While it is standard in math and science contexts where precise calculations are needed, the term can also be used metaphorically to describe a systematic, logical approach to an issue.
"Algebraically" describes the act of using the rules and techniques of algebra—a branch of mathematics dealing with symbols and the relationships between them—to solve problems, simplify expressions, or prove theorems. It goes beyond simple arithmetic; it involves working with variables (like x and y) and equations to represent unknown quantities and their connections.
When you approach a problem "algebraically," you are not merely guessing or estimating. You are employing a systematic method of manipulation based on established mathematical principles, such as the order of operations, combining like terms, and isolating variables. For example, "solving an equation algebraically" implies using these rules to deduce the specific value of an unknown variable, rather than finding it through trial and error.
It can also contrast with other approaches, such as solving something numerically (by approximation) or graphically (by looking at a plot). If you solve a problem algebraically, you aim to transform and reason with the expressions themselves, often arriving at an exact form.
The term is most commonly used in mathematics and related fields like physics, engineering, and computer science. You will often see it in phrases like "simplify this expression algebraically" or "derive the formula algebraically." However, "algebraically" can also be used metaphorically to describe a logical, step-by-step approach to a problem—even outside of math. For instance, you might say someone is "thinking algebraically" if they are breaking down a complex real-world issue into smaller, manageable parts and analyzing them systematically.
Ultimately, whether you are balancing equations or tackling organizational challenges, doing so "algebraically" signifies a precise, rule-based approach rooted in the logic of relationships.
Examples
- 1
Solving equations
You can solve this equation algebraically instead of using a graph.
- 2
Equivalent expressions
Although the two expressions look different, they are algebraically the same.
Phrase
algebraically the same
equal after you simplify them
- 3
Proof method
The theorem can be proved algebraically, but the picture helps most students understand it faster.
Forms and spellings
1 form open this card.
Main spelling
- algebraicallyadverb