Class 10 Maths Chapter 2 Ex 2.3

NCERT Solutions For Class 10 Maths Chapter 2 Ex 2.3

Ex 2.3 Class 10 Maths Question 1.
Divide the polynomial p(x) by the polynomial g(x) and find the quotient and remainder in each of the following:
(i) p(x) = x3 – 3×2 + 5x – 3, g(x) = x2 – 2
(ii) p(x) = x4 – 3×2 + 4x + 5, g(x) = x2 + 1 – x
(iii) p(x) = x4– 5x + 6, g(x) = 2 – x2
Solution:

Ex 2.3 Class 10 Maths Question 2.
Check whether the first polynomial is a factor of the second polynomial by dividing the second polynomial by the first polynomial.
(i) t2 – 3, 2t4 + 3t3 – 2t2– 9t – 12
(ii) x2 + 3x + 1, 3×4 + 5×3 – 7×2 + 2x + 2
(iii) x2 + 3x + 1, x5 – 4×3 + x2 + 3x + 1
Solution:

Ex 2.3 Class 10 Maths Question 3.
Obtain all other zeroes of 3×4 + 6×3 – 2×2 – 10x – 5, if two of its zeroes are  and (sqrt { frac { 5 }{ 3 } }) and –(sqrt { frac { 5 }{ 3 } })
Solution:

Ex 2.3 Class 10 Maths Question 4.
On dividing x3 – 3×2 + x + 2bya polynomial g(x), the quotient and remainder were x – 2 and -2x + 4 respectively. Find g(x).
Solution:

Ex 2.3 Class 10 Maths Question 5.
Give examples of polynomials p(x), g(x), q(x) and r(x), which satisfy the division algorithm and:
(i) deg p(x) = deg q(x)
(ii) deg q(x) = deg r(x)
(iii) deg r(x) = 0
Solution:

NCERT Solutions for Class 10 Maths Chapter 2 Polynomial (Hindi Medium) Ex 2.3

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