Worksheet # 1 Module 3 ( MATHEMATICS IN THE MODERN WORLD) A. Find the Product: 1. 6a2b ( 3a2 b + 6ab2 - 5a2b ) 2. - 7m ( 5p - 3qr ) 3. 4x2 ( -7x + 2x2 - 8 ) 4. 3ab3 ( b3 + 4a3 - 2a363 ) 5. ( 6m2 - 7n ) ( 2m2 + 4n ) 6. (2x + 3y ) ( 5x - 4y ) 7. (2m - 5n ) ( 2m - 5n ) 8. (4x - 1 ) ( x2 + 3x + 2) 9. ( x2 + 3y) ( x2 - 3y ) 10 . ( a2 + 3a + 6 ) ( 2a2 + 5a - 7 ) B. Find the Factors: 1. (5a + 4a2) + a 2. (a2b - ab + ab2) + ab 3. (25x - 15x2 - 5x3) + - 5x 4. (12a3 - 8a2 + 4a) + 2a 5. ( x2 - 19x - 20 ) + ( x + 1 ) 6. ( 4x2 - 32x + 16) + ( 2x - 8 ) 7. ( 3x2 + 23x + 14) + ( x + 7) 8. (12y2 + y - 32 ) + (3y - 5 ) 9. ( x2 + 5x - 24 ) + ( x - 3) 10 ( x2 - 81 ) ( x - 9)