Algebra

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Algebra

Algebra (pronounced: al-juh-bruh) is a branch of mathematics that deals with symbols and the rules for manipulating those symbols. The term "algebra" comes from the Arabic word "al-jabr" which means "reunion of broken parts".

Etymology

The word "algebra" is derived from the Arabic word "al-jabr", which was used in the title of a book written by the Persian mathematician Muhammad ibn Musa al-Khwarizmi in the 9th century. The full title of the book was "Kitab al-Jabr wa-l-Muqabala", which translates to "The Book of Restoration and Balancing". In this context, "restoration" refers to the operation of moving a subtracted quantity to the other side of an equation, and "balancing" refers to the operation of simplifying an equation by cancelling equal terms on both sides.

Related Terms

  • Equation: An equation is a statement that asserts the equality of two expressions.
  • Variable: In algebra, a variable is a symbol (usually a letter) that represents a number.
  • Coefficient: A coefficient is a numerical or constant quantity placed before and multiplying the variable in an algebraic expression.
  • Polynomial: A polynomial is an expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables.
  • Algebraic Expression: An algebraic expression is a mathematical phrase that can contain ordinary numbers, variables, and operators.
  • Linear Algebra: Linear algebra is the branch of mathematics concerning linear equations and linear functions and their representations through matrices and vector spaces.

See Also

External links

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