RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A

NCERT Maths Solutions for Ex 2.1 class 10 Polynomials is the perfect guide to boost up your preparation during CBSE 10th Class Maths Examination.

RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A

These Solutions are part of RS Aggarwal Solutions Class 10. Here we have given RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A

Other Exercises

Find the zeros of the following quadratic polynomials and verify the relationship between the zeros and the coefficients:
Question 1.
Solution:
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 1

Question 2.
Solution:
x² – 2x – 8
Let f(x) = x² – 2x – 8
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 2

Question 3.
Solution:
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 3

Question 4.
Solution:
4x² – 4x – 3
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 4
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 5

Question 5.
Solution:
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 6
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 7

Question 6.
Solution:
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 8
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 9
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 10

Question 7.
Solution:
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 11

Question 8.
Solution:
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 12
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 13

Question 9.
Solution:
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 14

Question 10.
Solution:
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 15
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 16

Question 11.
Solution:
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 17

Question 12.
Solution:
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 18

Question 13.
Solution:
Zeros of a quadratic polynomial are 2, -6
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 19

Question 14.
Solution:
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 20

Question 15.
Solution:
Sum of zeros = 8
Product of zeros = 12
Quadratic equation will be x² – (Sum of zeros) x + Product of zeros = 0
=> x² – 8x + 12 = 0
=> x² – 6x – 2x + 12 = 0
=> x (x – 6) – 2 (x – 6) = 0
=> (x – 6) (x – 2) = 0
Either x – 6 = 0, then x = 6
or x – 2 = 0, then x = 2
Zeros are 6, 2
and quadratic polynomial is x² – 8x + 12

Question 16.
Solution:
Sum of zeros = 0
and product of zeros = -1
Quadratic equation will be
x² – (Sum of zeros) x + Product of zeros = 0
=> x² – 0x – 1 = 0
=> x² – 1= 0
(x + 1)(x – 1) = 0
Either x + 1 = 0, then x = -1 or x – 1 =0, then x = 1
Zeros are 1, -1
and quadratic polynomial is x² – 1

Question 17.
Solution:
Sum of zeros = \(\frac { 5 }{ 2 }\)
Product of zeros = 1
Quadratic equation will be
x² – (Sum of zeros) x + Product of zeros = 0
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 21
and quadratic polynomial is 2x² – 5x + 2

Question 18.
Solution:
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 22

Question 19.
Solution:
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 23

Question 20.
Solution:
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 24

Question 21.
Solution:
One zero of the given polynomial is \(\frac { 2 }{ 3 }\)
RS Aggarwal Class 10 Solutions Chapter 2 Polynomials Ex 2A 25
=> (x + 3) (x + 3) = 0
x = -3, -3
Hence, other zeros are -3, -3

Hope given RS Aggarwal Solutions Class 10 Chapter 2 Polynomials Ex 2A are helpful to complete your math homework.

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