Tiwari Academy Discussion

Harshad Rawt

Asked: November 7, 2020In: Class 9

Verify This : x³ – y³= (x – y) (x² + xy + y²)

NCERT Solutions for Class 9 Maths Chapter 2 Important NCERT Questions Polynomials NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 2.5 Page No:49 Questions No:9 part:2

Gurdeep Sing

Asked: November 7, 2020In: Class 9

Expand each of the following, using suitable identities: (x + 2y + 4z)²

NCERT Solutions for Class 9 Maths Chapter 2 Important NCERT Questions Polynomials NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 2.5 Page No:49 Questions No:4 part:1

Gurdeep Sing

Asked: November 7, 2020In: Class 9

Factorise the following using appropriate identities: x²- y²/100

NCERT Solutions for Class 9 Maths Chapter 2 Important NCERT Questions Polynomials NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 2.5 Page No:48 Questions No:3 part:3

Himanshu Tyagi

Asked: November 7, 2020In: Class 9

Without actually calculating the cubes, find the value of each of the following: (28)³ + (–15)³ + (–13)³

NCERT Solutions for Class 9 Maths Chapter 2 Important NCERT Questions Polynomials NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 2.5 Page No:49 Questions No:10 part:2

Himanshu Tyagi

Asked: November 7, 2020In: Class 9

Without actually calculating the cubes, find the value of each of the following: (–12)³ + (7)³ + (5)³

NCERT Solutions for Class 9 Maths Chapter 2 Important NCERT Questions Polynomials NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 2.5 Page No:49 Questions No:14 part:1

Himanshu Tyagi

Asked: November 7, 2020In: Class 9

If x + y + z = 0, show that x³ + y³ + z³ = 3xyz.

NCERT Solutions for Class 9 Maths Chapter 2 Important NCERT Questions Polynomials NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 2.5 Page No:49 Questions No:13

Himanshu Tyagi

Asked: November 7, 2020In: Class 9

Verify that x³+y³+z³-3xyz=1/2(x + y + z)[(x-y)² + (y-z)² + (z-x)²]

NCERT Solutions for Class 9 Maths Chapter 2 Important NCERT Questions Polynomials NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 2.5 Page No:49 Questions No:12

Himanshu Tyagi

Asked: November 7, 2020In: Class 9

Factorise : 27x³ + y³ + z³ – 9xyz

NCERT Solutions for Class 9 Maths Chapter 2 Important NCERT Questions Polynomials NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 2.5 Page No:49 Questions No:11

Himanshu Tyagi

Asked: November 7, 2020In: Class 9

Give possible expressions for the length and breadth of each of the following rectangles, in which their areas are given: Area : 25a² – 35a + 12

NCERT Solutions for Class 9 Maths Chapter 2 Important NCERT Questions Polynomials NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 2.5 Page No:49 Questions No:15 part:1

Himanshu Tyagi

Asked: November 7, 2020In: Class 9

Give possible expressions for the length and breadth of each of the following rectangles, in which their areas are given: Area : 35y² + 13y –12

NCERT Solutions for Class 9 Maths Chapter 2 Important NCERT Questions Polynomials NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 2.5 Page No:49 Questions No:15 part:2

Verify This : x³ – y³= (x – y) (x² + xy + y²)

Expand each of the following, using suitable identities: (x + 2y + 4z)²

Factorise the following using appropriate identities: x²- y²/100

Without actually calculating the cubes, find the value of each of the following: (28)³ + (–15)³ + (–13)³

Without actually calculating the cubes, find the value of each of the following: (–12)³ + (7)³ + (5)³

If x + y + z = 0, show that x³ + y³ + z³ = 3xyz.

Verify that x³+y³+z³-3xyz=1/2(x + y + z)[(x-y)² + (y-z)² + (z-x)²]

Factorise : 27x³ + y³ + z³ – 9xyz

Give possible expressions for the length and breadth of each of the following rectangles, in which their areas are given: Area : 25a² – 35a + 12

Give possible expressions for the length and breadth of each of the following rectangles, in which their areas are given: Area : 35y² + 13y –12

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