CBSE Class 9 Answered
Expert Answer
A quadratic equation is a polynomial equation of the second degree. The general form is
where a ≠ 0. (For a = 0, the equation becomes a linear equation.)
The letters a, b, and c are called coefficients: the quadratic coefficient a is the coefficient of x2, the linear coefficient b is the coefficient of x, and c is the constant coefficient, also called a constant term.
A linear equation is an algebraic equation in which each term is either a constant or the product of a constant times the first power of a variable. Such an equation is equivalent to equating a first-degree polynomial to zero. These equations are called "linear" because they represent straight lines in Cartesian coordinates. A common form of a linear equation in the two variables x and y is
That is, if a=0 in above quadritic equation, then we get a linear equation.
Application Videos
-
Algebraic Identities: Quadratic
This video contains a question which is solved using square of binomials -
Factorisation using Square identity
This video explains factorisation using square identity -
Factor Theorem 1
This video contains a question which is solved using Factor theorem -
Factor Theorem 2
This video explain an application based problem on Factor theorem. -
Remainder Theorem
This video contains a question which is solved using Remainder theorem
Concept Videos
-
Introduction to Polynomials
This video explains the definition of polynomial and related terms, identif... -
Remainder Theorem
Discuss various algebraic operations on Polynomials. Learn the statement a... -
Factorisation: Factor Theorem
This video explains the factorization of polynomials using Factor Theorem a... -
Algebraic Identities: Quadratic
Understand the Algebraic identities for quadratic Polynomials. Apply the i... -
Algebraic Identities: Cubic Type
Listing of algebraic identities for cubic Polynomials and simplify the comp...
ANSWERED BY EXPERT ANSWERED BY EXPERT
ANSWERED BY EXPERT ANSWERED BY EXPERT ANSWERED BY EXPERT ANSWERED BY EXPERT
