Polynomials - Most Important Questions (Que. 16 to 30) | Class 9 Maths Chapter 2 | CBSE 2024-25
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✔️ Class: 9th
✔️ Subject: Maths
✔️ Chapter: Polynomial (Chapter 2)
✔️ Topic Name: Most Important Questions (Que. 16 to 30)
✔️ Topics Covered In this video (By Kishore sir): In this captivating video, Sir guides you through the fascinating realm of Class 9 Maths, focusing on 'Most Important Questions' within Chapter 2, "Polynomials". Dive deep into the world of Maths as we explore key concepts essential for success in your studies. Join us as we simplify complex topics and make learning fun and engaging for all Class 9 students.
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00:00 Introduction: Polynomial - Most Important Questions (Que. 16 to 30)
00:58 Most Important Questions: Que. 16 - Factorize the following: 9x^2 + 6x + 1 – 25y^2.
07:31 Que. 17 - Factorize the following: a^2 + b^2 + 2ab + 2bc + 2ca.
14:03 Que. 18 - Show that p(x) = x^3 – 3x^2 + 2x – 6 has only one real zero.
22:23 Que. 19 - Find the value of a if x + 6 is a factor of x^3 + 3x^2 + 4x + a.
28:04 Que. 20 - Simplify (2x – 5y)^3 – (2x + 5y)^3.
38:57 Que. 21 - Multiply x^2 + 4y^2 + z^2 + 2xy + xz – 2yz by (– z + x – 2y).
01:19:29 Que. 25 - Find the value of x^3 + y^3 + 15xy – 125 if x + y = 5.
01:31:38 Que. 27 - Verify: 1). x^3 + y^3 = (x + y) (x^2 – xy + y^2)
01:52:44 Que. 29 - Find the following product: (2x – y + 3z)(4x^2 + y^2 + 9z^2 + 2xy + 3yz – 6xz)
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