Question

Question 41.

The product of 7x and -12x is

(a) 84x²

(b) -84x²

(c) x²

(d) -x².

Answer


Question 42.

The area of a rectangle whose length and breadth are 9y and 4y² respectively is

(a) 4y³

(b) 9y³

(c) 36y³

(d) 13y³

Answer


Question 43.

The area of a rectangle with length 2l²m and breadth 3lm² is

(a) 6l³m³

(b) l³m³

(c) 2l³m³

(d) 4l³m³.

Answer


Question 44.

The volume of a cube of side 2a is

(a) 4a²

(b) 2a

(c) 8a³

(d) 8.

Answer​

Answer 1

Answer:

plz see the attachment for the answer frnd

Answer 2

Q.41-
-84x^2

Q.42-
36y^3

Q.43-
6l^3m^3

Q.44
8a^3