Question

what is algebra and algebraic​

Answer 1

Answer:

In mathematics, an algebraic expression is an expression built up from integer constants, variables, and the algebraic operations (addition, subtraction, multiplication, division and exponentiation by an exponent that is a rational number).For example, 3x2 − 2xy + c is an algebraic expression. Since taking the square root is the same as raising to the power 1/2,

is also an algebraic expression.

By contrast, transcendental numbers like π and e are not algebraic, since they are not derived from integer constants and algebraic operations. Usually, Pi is constructed as a geometric relationship, and the definition of e requires an infinite number of algebraic operations.

A rational expression is an expression that may be rewritten to a rational fraction by using the properties of the arithmetic operations (commutative properties and associative properties of addition and multiplication, distributive property and rules for the operations on the fractions). In other words, a rational expression is an expression which may be constructed from the variables and the constants by using only the four operations of arithmetic. Thus,

is a rational expression, whereas

is not.

A rational equation is an equation in which two rational fractions (or rational expressions) of the form

are set equal to each other. These expressions obey the same rules as fractions. The equations can be solved by cross-multiplying. Division by zero is undefined, so that a solution causing formal division by zero is rejected.

Answer 2

Explanation:

Algebra is a branch of mathematics dealing with symbols and the rules for manipulating those symbols. In elementary algebra, those symbols (today written as Latin and Greek letters) represent quantities without fixed values, known as variables. ... The letters x and y represent the areas of the fields

Algebra is used in Maths when we do not know the exact number(s) in a calculation. In algebra we use letters to represent unknown values or values that can change. Algebra can be used in business when predicting sales, growth and profit.