# Polynomials Formulas for Class 9 Maths Chapter 2

## Polynomials Formulas for Class 9 Maths Chapter 2

Are you looking for Polynomials formulas or important points that are required to understand Polynomials for class 9 maths Chapter 2? You are the right place to get all information about Polynomials Class 9 maths chapters 2. Polynomials formulas play a vital role in preparing you for the class 9 exam as well as higher studies. Polynomials formulas are very helpful for better scores in the exam.  Check Polynomials formulas according to class 9:

 $Monomial = {\rm{3}},\;2x,\;\frac{2}{3}y\;{\rm{etc}}{\rm{.}}$ $Binomial = (2x + 3y),\;(3x – 2y)\;{\rm{etc}}{\rm{.}}$ $Trinomial = x^2 + 4x + 5\;\;{\rm{etc}}{\rm{.}}$ $Linear\; Polynomial = x + 2,\;3x + 5\;{\rm{etc}}{\rm{.}}$ $Quadratic\; Polynomial = ax^2 + bx + c\;\;{\rm{etc}}{\rm{.}}$ $Cubic\; Polynomial = x^3 + 4x^2 + 5\;\;{\rm{etc}}{\rm{.}}$ $Biquadratic \;Polynomial = x^4 + 5x^3 + 2x^2 + 3$
 $(a+b)^{2}=a^2+2ab+b^{2}$ $(a-b)^{2}=a^{2}-2ab+b^{2}$ $\left (a + b \right ) \left (a – b \right ) = a^{2} – b^{2}$ $\left (x + a \right )\left (x + b \right ) = x^{2} + \left (a + b \right )x + ab$ $\left (x + a \right )\left (x – b \right ) = x^{2} + \left (a – b \right )x – ab$ $\left (x – a \right )\left (x + b \right ) = x^{2} + \left (b – a \right )x – ab$ $\left (x – a \right )\left (x – b \right ) = x^{2} – \left (a + b \right )x + ab$ $\left (a + b \right )^{3} = a^{3} + b^{3} + 3ab\left (a + b \right )$ $\left (a – b \right )^{3} = a^{3} – b^{3} – 3ab\left (a – b \right )$ $(x + y + z)^{2} = x^{2} + y^{2} + z^{2} + 2xy + 2yz + 2xz$ $(x + y – z)^{2} = x^{2} + y^{2} + z^{2} + 2xy – 2yz – 2xz$

#### Summary of Polynomials

We have shared very important formulas for Polynomials which helps to score in the class 9 exams. If you have any questions and doubts related to Polynomials please let me know through comment or mail as well as social media. When you understand the formulas behind each Polynomials topics then it would be easier to solve the most complex problems related to a Polynomials too.

#### NCERT Solutions For Class 9 Maths by Chapters

• Chapter 1 – Number Systems
• Chapter 2 – Polynomials
• Chapter 3 – Coordinate Geometry
• Chapter 4 – Linear Equations in Two Variables
• Chapter 5 – Introduction to Euclids Geometry
• Chapter 6 – Lines and Angles
• Chapter 7 – Triangles