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

2. The volume of a cube of side 2a is

3. The volume of a cuboid of dimensions a, b, c is

4. (x - y)(x + y) + (y - z)(y + z) + (z - x) (z + x) is equal to

5. (a + b)² is equal to

6. (a - b)² is equal to

7. a² - b² is equal to

8. An algebraic expression that contains only one term is called:

9. 5x + 6y is a:

10. The algebraic expression 3x + 2y + 6 is