Q3 of 11 Page 132

Write any five expressions which are polynomials.

For an expression to be polynomial the powers of the variable should be whole numbers.

The polynomials are as follows:

(i) 4

(ii) 2x

(iii) 2x² + 2x + 4

(iv) 2/p^-2

(v) 2z

State, giving the reason, whether the following expressions are polynomials or not.

(1) b² – 25

(3)

Are the following expressions polynomials?

(1) 21 – 8a + a²

(2) n³ – 6n² + 13

(3)

(4)

(5)

(6)

(7) 51

(8) 9 – 5b² + b⁴

(9)

Write any five expressions which are not polynomials.

Write the coefficient and the degree of each of the following monomials.

(1) 23x³ (2) 18

(3) –6m⁵ (4)

(5) a² (6) –10n²

(7) (8) 4y

(9) x (10)

(11) –15s³ (12) 18z⁶

(13) 4t⁸ (14) –17p

(15)

Questions · 11

18. Polynomials

1 1 2 3 4 1 2 3 4 5 6