Class 9th Maths – RD Sharma Chapter 4 : Algebraic Identities Exercise 4.2 Solutions (Step-by-Step Guide)

RD Sharma Chapter 4 : Algebraic Identities Exercise 4.2 Solutions

1. Write the following in the expanded form : (a + 2b + c)^2 Watch Solution
2. Write the following in the expanded form : (2a – 3b – c)^2 Watch Solution
3. Write the following in the expanded form : (-3x + y + z)^2 Watch Solution
4. Write the following in the expanded form : (m + 2n – 5p)^2 Watch Solution
5. Write the following in the expanded form : (2 + x – 2y)^2 Watch Solution
6. Write the following in the expanded form : (a^2 + b^2 + c^2)^2 Watch Solution
7. Write the following in the expanded form : (ab + bc + ca)^2 Watch Solution
8. Write the following in the expanded form : (x/y + y/z + z/x)^2 Watch Solution
9. Write the following in the expanded form : (a/bc + b/ca + c/ab)^2 Watch Solution
10. Write the following in the expanded form : (x + 2y + 4z)^2 Watch Solution
11. Write the following in the expanded form : (2x – y + z)^2 Watch Solution
12. Write the following in the expanded form : (-2x + 3y + 2z)^2 Watch Solution
13. If a + b + c = 0 and a^2 + b^2 + c^2 = 16, find the value of ab + bc + ca. Watch Solution
14. If a^2 + b^2 + c^2 = 16 and ab + bc + ca = 10, find the value of a + b + c. Watch Solution
15. If a + b + c = 9 and ab + bc + ca = 23, find the value of a^2 + b^2 + c^2. Watch Solution
16. Find the value of 4x^2 + y^2 + 25z^2 + 4xy – 10yz – 20zx when x = 4, y = 3 and z = 2. Watch Solution
17. Simplify : (a + b + c)^2 + (a – b + c)^2 Watch Solution
18. Simplify : (a + b + c)^2 – (a – b + c)^2 Watch Solution
19. Simplify : (a + b + c)^2 + (a – b + c)^2 + (a + b – c)^2 Watch Solution
20. Simplify : (2x + p – c)^2 – (2x – p + c)^2 Watch Solution
21. Simplify : (x^2 + y^2 – z^2)^2 – (x^2 – y^2 + z^2)^2 Watch Solution
22. Simplify the following expression : (x + y + z)^2 + (x + y/2 + z/3)^2 – (x/2 + y/3 + z/4)^2 Watch Solution
23. Simplify the following expression : (x + y – 2z)^2 – x^2 – y^2 – 3z^2 + 4xy Watch Solution
24. Simplify the following expression : (x^2 – x + 1)^2 – (x^2 + x + 1)^2 Watch Solution

 

4. Algebraic Identities – R.D. Sharma Class 9th Maths

1. Algebraic Identities Exercise 4.1 Video Solutions
2. Algebraic Identities Exercise 4.2 Video Solutions
3. Algebraic Identities Exercise 4.3 Video Solutions
4. Algebraic Identities Exercise 4.4 Video Solutions
5. Algebraic Identities Exercise 4.5 Video Solutions
6. Algebraic Identities Very Short Answer Questions (VSAQs) Video Solutions
7. Algebraic Identities Fill in the Blanks (FBQs) Video Solutions
8. Algebraic Identities Multiple Choice Questions (MCQs) Video Solutions