Root is a very important concept in junior two mathematics. Usually used to represent the solution of an equation, that is, the root of the equation. In algebra, root refers to the variable value that makes the equation hold. For example, in the equation x 2 = 9, x=3 and x=-3 are the roots of the equation. Therefore, we can say that this equation has two roots.

The roots of equations are of great significance in mathematics. In fact, it has been widely used in many fields. For example, in physics, roots can be used to represent the acceleration of motion. In addition, the radical formula can also be used to calculate important factors such as income and cost in finance and economics.

Learning the knowledge of roots in junior two mathematics can not only help us understand the solution of equations, but also cultivate and strengthen our mathematical ability. Learning the concept and application of roots can improve our logical thinking ability and computing ability, which is of great benefit to our future study and life. Therefore, we should seriously study the basic knowledge of junior two mathematics and strive for better results in mathematics.