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
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2
Answer:
plz see the attachment for the answer frnd
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Answered by
2
Q.41-
-84x^2
Q.42-
36y^3
Q.43-
6l^3m^3
Q.44
8a^3
-84x^2
Q.42-
36y^3
Q.43-
6l^3m^3
Q.44
8a^3
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