## Introduction to Equations

An equation containing a variable is neither true nor false until a particular number is substituted for the variable. If… Click here to read more

From basic to higher mathematics

An equation containing a variable is neither true nor false until a particular number is substituted for the variable. If… Click here to read more

A linear equation or first-degree in $$x$$ is written in standard form as \[ax + b = 0\] with $$a… Click here to read more

Questions that arise in the real world are usually expressed in words rather than in mathematical symbols. For example: What… Click here to read more

A quadratic equation or second degree equation in $$x$$ is written in standard form as \[a{x^2} + bx + c… Click here to read more

The process of writing an expression as a product of two or more common factors is called the method of… Click here to read more

Sometimes factorization of a given quadratic equation is not possible. When coefficients in the quadratic equation are large numbers, then… Click here to read more

The completing square method is still a long method for solving the quadratic equation, so to make calculations shorter and… Click here to read more

Quadratic equations have many applications in the arts and sciences, business, economics, medicine and engineering. Example: A certain negative number… Click here to read more

The expression $${b^2} – 4ac$$, which appears under the radical sign in the quadratic formula \[x = \frac{{ – b… Click here to read more

An equation in which the unknown appears in a radicand is called a radical equation. For instance: $$\sqrt[4]{{{x^2} – 5}}… Click here to read more