Question

16. The area of a rectangle whose length is 3mn and breadth is 4mnp __________.

17. The coefficient of ab in the expansion (a–b)²
is _______ .

18. An expression containing three terms is called a ________.

19. The total surface area of a cuboid of measures 1m x 2m x1.5m is ________.​

Answer 1

Answer:

1.)12m²n²p

2.)a²-2ab+b²

3.)trinomial

4.)13m²

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