9WORK BOOK
POLYNOMIALS
Activity 1
Rewrite the following algebraic expressions in to polynomials
𝑎) 28 + 2𝑥
𝑏) 14𝑥 +
C) 35x-24𝑥2
D) 10x-𝑥2
Activity 2
Find the values of 𝑝 0 , 𝑝 1 , 𝑝(−1) for the following polynomials
𝑎) 𝑝 𝑥 = 𝑥2
+ 2𝑏) 𝑝 𝑥
= 3𝑥2
− 𝑎𝑥 + 1
𝑐) 𝑝 𝑥 = 4𝑥3
− 24𝑥2
+ 3𝑥
𝑑) 𝑝 𝑥 = 2𝑥2
− 3𝑥 + 1
Activity 3
For each pair of polynomials given below find 𝑝 𝑥 + 𝑞(𝑥)
𝑎) 𝑝 𝑥 = 2𝑥2
− 5𝑥 + 1 𝑞 𝑥 = 𝑥2
+ 3𝑥 + 2
𝑏) 𝑝 𝑥 = 𝑥2
+ 𝑥 + 1 𝑞 𝑥 = 𝑥2
+ 𝑥 + 2
Activity 4
For each of the following pairs of polynomials find the value of
𝑝 𝑥 − 𝑞(𝑥)
𝑎) 𝑝 𝑥 = 𝑥2
+ 𝑥 𝑞 𝑥 = 𝑥2
− 10𝑥
𝑏) 𝑝 𝑥 = 𝑥2
+ 2𝑥 + 3 𝑞 𝑥 = 2𝑥2
+ 𝑥 + 1
Activity 5
Find the value of 𝑝 1 + 𝑞(1) and 𝑝 1 − 𝑞(1) for the following set of polynomials
a) 𝑝 𝑥 = 2𝑥 + 3𝑞 𝑥 = 4𝑥 + 6
b) 𝑝 𝑥 = 2𝑥2 + 5𝑥 + 8 𝑞 𝑥 = 2𝑥2 + 𝑥 + 4
Activity6
Find 𝑝 𝑥 𝑞 𝑥 and 𝑝 1 𝑞 1 for the following
a)𝑝 𝑥 = 2𝑥 + 3 𝑞 𝑥 = 3x2
b)𝑝 𝑥 = 𝑥2 + 2𝑥 𝑞 𝑥 = 2𝑥2 + 3𝑥 + 4
Activity 7
Simplify the following polynomial as a single polynomial
𝑎) 2𝑥 + 1 3𝑥 + 4 + 2𝑥 − 1 3𝑥 + 4
𝑏) 𝑥 + 1 5𝑥 + 4 + (5𝑥 − 4)(𝑥 + 1)
Activity 8
If 𝑝 𝑥 = 𝑥3 − 2𝑥2 + 5𝑥 + 1 and𝑞 𝑥 = 𝑥4-1 then find the
degree of the following.
𝑎) 𝑃(𝑋)𝑏) 𝑞 𝑥
𝑐) 𝑝 𝑥 + 𝑞 𝑥 𝑑) 𝑝 𝑥 − 𝑞 𝑥
𝑒) 𝑝 𝑥 𝑞(𝑥)
Activity 9
Find the quotient and remainder on dividing 𝑝 𝑥 by 𝑞 𝑥
𝑎) 𝑝 𝑥 = 6𝑥2 + 7𝑥 + 1 𝑞 𝑥 = 3𝑥 − 1
𝑏) 𝑝 𝑥 = 𝑥2 − 2 𝑞 𝑥 = 2𝑥 − 4
ANSWERS
1) a)2𝑥 + 28 𝑏)𝑥2 + 14𝑥 + 40 𝑐)4𝑥3 − 24𝑥2 + 35𝑥 𝑑)𝑥2 + 10𝑥
2) a)𝑃 0 = 1, 𝑃 1 = 0, 𝑃 −1 = 6
b) 𝑝 0 = 1, 𝑝 1 = 3, 𝑝 −1 = 5
c) 𝑝 0 = 0, 𝑝 1 = 17, 𝑝 −1 = −31
d) 𝑝 0 = 2, 𝑝 1 = 3, 𝑝 −1 = 3
3) a) 3𝑥2 − 2𝑥 + 3 𝑏) 2𝑥2 + 2𝑥 + 3
4) a) 11𝑥 𝑏) 𝑥2 − 𝑥 − 2
5) a)𝑝 1 − 𝑞 1 = −5, 𝑝 1 + 𝑞 1 = 15
𝑏)𝑝 1 − 𝑞 1 = 8, 𝑝 1 + 𝑞 1 = 22
6) a) p x q x = 6𝑥2 + 5𝑥 − 6 , 𝑝 1 𝑞 1 = 5
b) 𝑝 𝑥 𝑞 𝑥 = 2𝑥4 + 7𝑥3 + 10𝑥2 + 8𝑥 , 𝑝 1 𝑞 1 = 27
7) a)12𝑥2 + 16𝑥 𝑏)10𝑥2 + 8𝑥
8) a) 3 , b) 4 , c) 4 , d) 4 , e) 7
9) a) 2𝑥 + 3 , 4 𝑏)
1
2
𝑥 + 1 , 2
Type equation here.
SUBMITTED BY
RASANATH . V.K
R.NO:29

Work book on POLYNOMIALS

  • 1.
  • 2.
  • 3.
    Activity 1 Rewrite thefollowing algebraic expressions in to polynomials 𝑎) 28 + 2𝑥 𝑏) 14𝑥 + C) 35x-24𝑥2 D) 10x-𝑥2
  • 4.
    Activity 2 Find thevalues of 𝑝 0 , 𝑝 1 , 𝑝(−1) for the following polynomials 𝑎) 𝑝 𝑥 = 𝑥2 + 2𝑏) 𝑝 𝑥 = 3𝑥2 − 𝑎𝑥 + 1 𝑐) 𝑝 𝑥 = 4𝑥3 − 24𝑥2 + 3𝑥 𝑑) 𝑝 𝑥 = 2𝑥2 − 3𝑥 + 1
  • 5.
    Activity 3 For eachpair of polynomials given below find 𝑝 𝑥 + 𝑞(𝑥) 𝑎) 𝑝 𝑥 = 2𝑥2 − 5𝑥 + 1 𝑞 𝑥 = 𝑥2 + 3𝑥 + 2 𝑏) 𝑝 𝑥 = 𝑥2 + 𝑥 + 1 𝑞 𝑥 = 𝑥2 + 𝑥 + 2
  • 6.
    Activity 4 For eachof the following pairs of polynomials find the value of 𝑝 𝑥 − 𝑞(𝑥) 𝑎) 𝑝 𝑥 = 𝑥2 + 𝑥 𝑞 𝑥 = 𝑥2 − 10𝑥 𝑏) 𝑝 𝑥 = 𝑥2 + 2𝑥 + 3 𝑞 𝑥 = 2𝑥2 + 𝑥 + 1
  • 7.
    Activity 5 Find thevalue of 𝑝 1 + 𝑞(1) and 𝑝 1 − 𝑞(1) for the following set of polynomials a) 𝑝 𝑥 = 2𝑥 + 3𝑞 𝑥 = 4𝑥 + 6 b) 𝑝 𝑥 = 2𝑥2 + 5𝑥 + 8 𝑞 𝑥 = 2𝑥2 + 𝑥 + 4
  • 8.
    Activity6 Find 𝑝 𝑥𝑞 𝑥 and 𝑝 1 𝑞 1 for the following a)𝑝 𝑥 = 2𝑥 + 3 𝑞 𝑥 = 3x2 b)𝑝 𝑥 = 𝑥2 + 2𝑥 𝑞 𝑥 = 2𝑥2 + 3𝑥 + 4
  • 9.
    Activity 7 Simplify thefollowing polynomial as a single polynomial 𝑎) 2𝑥 + 1 3𝑥 + 4 + 2𝑥 − 1 3𝑥 + 4 𝑏) 𝑥 + 1 5𝑥 + 4 + (5𝑥 − 4)(𝑥 + 1)
  • 10.
    Activity 8 If 𝑝𝑥 = 𝑥3 − 2𝑥2 + 5𝑥 + 1 and𝑞 𝑥 = 𝑥4-1 then find the degree of the following. 𝑎) 𝑃(𝑋)𝑏) 𝑞 𝑥 𝑐) 𝑝 𝑥 + 𝑞 𝑥 𝑑) 𝑝 𝑥 − 𝑞 𝑥 𝑒) 𝑝 𝑥 𝑞(𝑥)
  • 11.
    Activity 9 Find thequotient and remainder on dividing 𝑝 𝑥 by 𝑞 𝑥 𝑎) 𝑝 𝑥 = 6𝑥2 + 7𝑥 + 1 𝑞 𝑥 = 3𝑥 − 1 𝑏) 𝑝 𝑥 = 𝑥2 − 2 𝑞 𝑥 = 2𝑥 − 4
  • 12.
    ANSWERS 1) a)2𝑥 +28 𝑏)𝑥2 + 14𝑥 + 40 𝑐)4𝑥3 − 24𝑥2 + 35𝑥 𝑑)𝑥2 + 10𝑥 2) a)𝑃 0 = 1, 𝑃 1 = 0, 𝑃 −1 = 6 b) 𝑝 0 = 1, 𝑝 1 = 3, 𝑝 −1 = 5 c) 𝑝 0 = 0, 𝑝 1 = 17, 𝑝 −1 = −31 d) 𝑝 0 = 2, 𝑝 1 = 3, 𝑝 −1 = 3 3) a) 3𝑥2 − 2𝑥 + 3 𝑏) 2𝑥2 + 2𝑥 + 3 4) a) 11𝑥 𝑏) 𝑥2 − 𝑥 − 2 5) a)𝑝 1 − 𝑞 1 = −5, 𝑝 1 + 𝑞 1 = 15 𝑏)𝑝 1 − 𝑞 1 = 8, 𝑝 1 + 𝑞 1 = 22 6) a) p x q x = 6𝑥2 + 5𝑥 − 6 , 𝑝 1 𝑞 1 = 5 b) 𝑝 𝑥 𝑞 𝑥 = 2𝑥4 + 7𝑥3 + 10𝑥2 + 8𝑥 , 𝑝 1 𝑞 1 = 27 7) a)12𝑥2 + 16𝑥 𝑏)10𝑥2 + 8𝑥 8) a) 3 , b) 4 , c) 4 , d) 4 , e) 7 9) a) 2𝑥 + 3 , 4 𝑏) 1 2 𝑥 + 1 , 2
  • 13.
    Type equation here. SUBMITTEDBY RASANATH . V.K R.NO:29