grade 8, assmnt (algebra)

© 2007 -2010 tutorco.com 1 1. Add the following:-a) 2x – 3y + 4z , 5x + 2y – 5z b) 8x + 7xy + 5y , -6x – xy – 8y , -5x – 2xy + 3y 2. Subtract the following: a) 6a from -4a b) – 9ab from – 2ab TOPIC: ALGEBRA 8/6/6/S © 2007 -2010 tutorco.com 2 c) – 5b from 8b d) 4a – 7ab + 3b + 12 from 12a – 9ab + 5b -3b e) (2a – 3b + 4c) -(a – b – 2c) 3. What should be added to 3x³ -2x² + 5x + 1 so that the sum may be x³ -2x² + 4x – 1? © 2007 -2010 tutorco.com 3 4. Multiply:-a) -3b (4a – 6b – c) b) – 7pr and 2rp c) -2 and – 12 st 5. Divide the following : a) 12pqr by 9rs b) 10x y³ z² by 5 x² y² z © 2007 -2010 tutorco.com 4 c) 2x² -5x -20 by 2x 6. Use FOIL rule to solve the following: a) (2x – 5) (4x + 1) 7. Divide and find the quotient and remainder:-a) x² + 7x + 12 by (x + 3) © 2007 -2010 tutorco.com 5 8. Solve the linear equation:-a) 3(t – 3) = 5(2t + 1) b) 5 + 4x – 7 = 2x – 2 -x c) (x-2) = (x + 3)