MPM1D Exam Review 1. Write in expanded form, then evaluate. b) 4 a) 35 2. Chapter 3 – Polynomials & Exponents 4 d) 5 c) 4 2 2 3 2 e) 6 Evaluate. a) 5 2 c) 2 1 b) 4 5 3 3 3 3 6 d) 2 22 32 2 4 e) 33 37 3 5 24 15 2 3. Evaluate the expression x 3 9x 2 27x 27 for x 3 4. Write each as a single power, then evaluate. 65 4 4 a) 33 3 35 b) 3 c) 2xy 3 when x 2 and y 1 d) 525 6 Classify the following polynomials by the number of terms and state their degrees. a) 4y 5z 2 b) 2a 2b 5ab 2 3a 2b 2 5. 6. Identify the like terms in each of the following: a) 3x ,3xy ,3xy 2 ,8xy 2 ,5x 2 y ,2yx 2 b) 2b 3 ,2b 2 ,2b ,2 7. Simplify the following: a) 3x 4y 2x 5y d) 8. c) 2x 2a 3b 7b 5a 3a b 6p q 3r 7q 2r 5p e) 5x 3 6x 4 f) 4y 3 5y 2 Use the distributive property to expand and simplify: a) 35y 2 b) 7a a 2 2 c) 32 54 p 3 d) 32x 4 e) 2x 4 g) 7 3x 4x 3 2 9. b) h) 82x 3x 5 i) 230 56x 3x j) 2 2 4m 2 5y 7x 3y f) 32x 4 3mn 2n 2 mn m 2 5n 2 In a soccer league, teams are awarded 3 points for a win and 1 point for a tie. a) Write an expression to determine a team’s total points. b) Use your expression to find the number of points earned by a team that has 5 wins and 2 ties. 10. State the degree of each term or polynomial. a) 5x 4 b) 7m 5 c) 2c a 3b d) 5x 4 e) 5m 2 3m 6 f) 6a 2b 5ab 2 4ab 3 11. Simplify by collecting like terms. a) 5x 6 3x b) 3x x 2 c) 2x 2 6 x 2 3 d) 5 x 3 2x e) x 4 6 5x f) 3x 3 x 2x 3 3x g) 4x 2 3x 5 5x 2 2x 7 h) 3x 5y 4x 6y i) 6a 3 4ab 5b 2 3 5a 3 3ab j) 3w 2 2wy y 2 2w 2 2wy 4y 2 k) 5d 3m 4d 5m 12. Simplify each of the following. a) a 5 b 4 a 3b 2 b) d 6d d7 5 c) y y 13. Expand and simplify. a) 3x 2 2x 5 4x 2 6x 2 c) 42x 3y 53x 6y 6 3 5 2 b) 5x 2 2x 6 32x 2 6x 2 d) 2a 3a a 4 a 2a 3 14. a) Determine an expression for the volume of a cube with side length x . b) Suppose we doubled the side length of the cube. Determine a new expression for the volume of the cube, in terms of x . c) How many times greater is the larger cube than the smaller cube? Determine how many times bigger the following cube is than the first: d) If the sides were tripled. e) If the sides were made four times longer. 15. Determine a simplified expression for the Perimeter and Area of the following: 2x 3x 2x 2x + 1 16. a) Determine a simplified expression for the area of the shaded region. b) Determine an expression for the total edging (both inside and outside). 2x+7 2x x-1 x 17. Matt is building a dock at his cottage. The length of the dock is 3 metres longer than twice the width. a) Draw a diagram of the dock and label the width and length with algebraic expressions. b) Find simplified expressions for both the Area and Perimeter of the dock. c) Find the Perimeter and Area of the dock if the width is 2 metres. Chapter 3 Exam Review – Solutions 64 1 e) 2a) -40 b) 7 c) 64 d) 2 e) -8 3) 0 4a) 6561 b) 36 c) 256 d) 1953125 125 81 5a) binomial, degree 2 b) trinomial, degree 4 6a) 3xy2 and 8xy2, 5x2y and 2yx2 b) none 7a) 5x - y b) 10a + 3b c) -5x + 8y d) p – 8q +5r e) 11x 1 f) y 1 8a) 15y – 6 b) 7a3 + 14a c) 60p – 39 d) 6x 12 e) 2x 8 1a) 243 b) 16 c) -16 d) f) 6x 12 g) 21x 2 28x 21 h) 16x 2 24x 40 i) 12880x 2 690x j) 3m 2 4mn 3n 2 9a) P = 3W + 1T b) P = 17 10a) 4 b) 5 c) 4 d) 1 e) 2 f) 3 11a) 8x 6 b) 2x 2 c) 3x 2 3 d) x 2 e) 4x 2 f) 5x 3 2x g) x 2 x 2 h) 7x 11y i) 11a 3 7ab 5b 2 3 j) w 2 3y 2 k) d 2m 12a) a8b6 b) d4 c) y8 13a) 7x 2 18x 7 b) x 2 8x 24 c) 7x 42y d) 4a 3 22a 2 3a 14a) V x 3 b) V 8x 3 c) 8 times d) 27 times e) 64 times 15) Perimeter = 10x 2 Area = 4x 2 3x 16a) Area = 9x b) Edging = 12x 12 17a) b) Area = 2x 2 3x Perimeter = 6x 6 c) Area = 14m2 Perimeter = 18m