Question

1. Mark a tick () against the correct alternative:
(i) The coefficient of x4 in 6x4y2 is
(A) 6 (B) y2 (C) 6y2 (D) 4
(ii) Numerical coefficient of the monomial –x2y4 is
(A) 2 (B) 6 (C) 1 (D) –1
(iv) How many terms does the expression ( )( ) 2 3 2 1− 2a b − 7a 2b + 3b contain?
(A) 5 (B) 4 (C) 3 (D) 2
(v) Which of the following expressions is a binomial?
(A) 2x2y2 (B) x2 + y2 – 2xy
(C) 2 + x2 + y2 + 2x2 y2 (D) 1 – 3xy3
(vi) Which of the following pairs of terms is a pair of like terms?
(A) 2a, 2b (B) 2xy3, 2x3y (C) 3x2y,2 yx21 (D) 8, 16 a
(vii)A zero of the polynomial x2 – 2x – 15 is
(A) x = – 5 (B) x = – 3 (C) x = 0 (D) x = 3
(viii) The degree of the polynomial x3
y4 + 9x6 – 8y5 + 17 is
(A) 7 (B) 17 (C) 5 (D) 6

Answer 1

Answer:

1) 6y2

2)1

4) 4

5) 1-3xy3

6) 2xy3,2x2y

7)-3

8) 7