Question: EXERCISES: A. Simplify the following: 1. 3a - { 4a + 3[2a -2 (2a + 3b) - (a-b) -6 (a+b)] -(7a - 6b); 2. a

EXERCISES: A. Simplify the following: 1. 3a - { 4a + 3[2a -2 (2a + 3b) - (a-b) -6 (a+b)] -(7a - 6b); 2. a - {5b - [a -(3c - 3b) + 2c -3 (a - 2b - c) ] 3. 3x - { 3 + 2 [5x -2 (4x + 6) + 5x +7 6x) -10x} 4. 9x2 - | 6x2 + [3x2 +x2 -1 -x2 -1 -x2 -2x (4x + 3) +4] + 3(2x - 1) } B. Find the sum of the following algebraic expressions. 1. X3 + 9x2 -2 ; 3x2 + 6x -5 ; 4 + x3 - 2x 2. -6x3y2z + 2x2y2 + 3xy3 + xy2 ; 3x3y - 8x2y2 - 5xy3 ; 2xy2 - xy3 - 5x3y2z + 5x2y2 - 4x3y 3. X4 - xy4 - 5xy ; 5x3y2 + 3x2y3 - 2xy4 ; -3x2y3 - x4y + 3x3y2 + 6xy C. Subtract the first expression from the second. 1. 3x2 + 8x +2x4 ; 3x4 -8x2 2. 6x2 + 12x -2 ; 8x3 + 6x2 -14x + 2 3. 5x3 -7x -3 ; 3x + x2 +5 4. From a2b -15ab2 + 17ab3, subtract the sum of 2a4 -3a2b + a2b2 ; 4a2b - 6a2b2 +2ab3 ; 10a2b2 +15ab3 - 5b4
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