Subtract 4a - 7ab + 3b + 12 from 12a- 9ab+ 5b- 3.

3

(a)

Subtract 1+ a² + b² from the sum of 1- a²-b² and a²-b²

3

(a)

Subtract the sum of 3a - 4b +c and 1- 2a + b from the sum of 3b+c + b and a -2b + 3

3

(a)

Add 2x (z- x- y) and 2y (z- y- x).

3

(a)

Subtract 3l (l- 4m + 5n) from 41 (10n- 3m + 21)

3

(a)

Simplify:(7m - 8n)² + (7m + 8n)²

3

(a)

Simplify:(4m + 5n)² + (5m+ 4n)²

3

(a)

Simplify:(2.5p- 1.5q)² - (1.5p- 2.5q)²

3

(a)

Subtract 3xy+ 5yz- 7zx from 5xy- 2yz - 2zx + 10xyz.

3

(a)

Show that (4pq + 3q)² - (4pq - 3q)² = 48pq²

3

(a)

Show that (a - b)(a + b) + (b - c)(b + c) + (c - a)(c + a) = 0

3

(a)

Verify the identity (x + a)( x + b) =.x²+ (a + b)x + ab for a = 2, b = 3 and x = 4,

3

(a)

The length and breadth of a rectangle are 3x²- 2 and 2x + 5 respectively. Find its area

3

(a)

Find the product of 2x, 3ax² and -5pqx³

3

(a)

Find the volume of each rectangular box with given length, breadth and height

	Length	Breadth	Height
(i)	2ax	3by	5cz
(ii)	m2n	n2p	p2m
(iii)	2q	4q2	8q3

3

(a)