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1 A.2a (a) Using laws of exponents to simplify monomial expressions and ratios of monomial expressions 1. Which expression is equivalent to (5x 2 )(4x 5 )? A 9x 7 B 9x 10 C 20x 7 D 20x Which expression is equivalent to (12x 8 )(- 4x 2 )? A -48x 10 B -48x 16 C 8x 10 D 8x Which expression is equivalent to (4x 2 ) 3? A 12x 5 B 12x 6 C 64x 5 D 64x 6
2 A.2a (b) Using the laws of exponents to simplify monomial expressions and ratios of monomial expressions 1. Which expression is equivalent to (- x 2 ) 3? A -x 5 B x 6 C -x 6 D -3x 5 2. Which expression is equivalent to 2n 2? n 2 A n B - 2n 2n C n D 2n n 3x 3. Which expression is equivalent to 3 5x 3x A B 5x 2 3x C 5 D 3 5x?
3 A.2a (c) Using the laws of exponents to simplify ratios of monomial expressions 1. Which expression is equivalent to x 12 x 3? A x 4 B x 9 C x 15 D x Which expression is equivalent to x 15 x 13? A x B x 2 C x 28 D x Which expression is equivalent to 12x 10 3x? A 9x 9 B 9x 10 C 4x 9 D 4x Which expression is equivalent to 36x 8 9x 7? A 4x B x 15 C 4 D 4x 15
4 SN (a) Expressing numbers in scientific notation 1. Which expression represents in scientific notation? A x 10 5 B x 10 4 C x 10 3 D x Which expression represents in scientific notation? A 3.62 x 10-6 B 3.62 x 10-5 C 3.62 x 10-4 D 3.62 x Which expression represents in scientific notation? A 7.83 x 10-2 B 7.83 x 10-1 C 7.83 x 10 1 D 7.83 x 10 2
5 SN (b) Expressing numbers in scientific notation and performing operations 1. Which expression represents 348,000 in scientific notation? A 3.48 x 10 4 B 3.48 x 10 5 C 3.48 x 10 6 D 3.48 x Which expression represents the product of and 3,500,000? A 11.5 x 10 3 B 2.8 x 10 1 C 2.8 x 10 4 D 28 x Which expression represents the product of (4.63 x10 8 ) and 500? A x 10 4 B x 10 6 C x D x 10 16
6 A.2b (a) Finding the sum and difference of polynomials 1. (4x - 2y) + (-2x + 6y) = A 2x + 4y B -2x + 10y C -2x - 10y D 6x + 8y 2. (3m - 6n) + (2m + n) = A 5m - 5n B -4m + n C m - 7n D 2m - 5n 3. (7x 2 + 8x - 4) - (6x 2 + 8x - 6) = A x 2-10 B x C 13x x - 10 D 13x (15m m 2 ) - (18-6m 2 + m) = A m - 7m 2 B 12m m - 7 C 14m - 7 D 14m + 29
7 A.2b (b) Using polynomial operations to solve problems 1. A local fast food chain had revenue represented by the polynomial 6x 2 + 5x - 8 for one fiscal year and expenses for that same fiscal year represented by the polynomial 4x 2-3x + 7. What was the company s profit for the fiscal year? A 10x 2 + 2x - 1 B 2x 2 + 8x - 15 C 2x 2 + 2x - 1 D 2x 2-8x Sherry owned a card shop and an art store. The card shop profits for 1998 are represented by the polynomial 3x 2 + 5x + 8. The art shop however had losses for 1998 represented by the polynomial 2x 2-8. Which polynomial represents the total amount Sherry made in 1998? A 5x 2 + 5x B x 2 + 5x C x 2 + 5x + 16 D x 2-5x - 16
8 A.2b (c) Multiplying polynomials by a monomial 1. What is the product 2a(4a 2 + 6)? A 8a 3 + 8a B 8a C 8a D 8a a 2. What is the product 2m 2 (5m 2-6m + 2)? A 10m 4-6m + 2 B 10m 2-12m 3 + 4m 2 C 10m 4-12m 3 + 4m 2 D 10m 4-12m What is the product -3xy(3x 2 y + 2xy 2-7y 3 )? A -9x 3 y 2-6x 2 y xy 4 B -9x 3 y 2 + 2xy 2-7y 3 C -9x 3 y 2-6x 2 y 3-7y 3 D -9x 2 y + 6x 2 y 3-21xy 4 4. A triangle has a height of 4x and a base of 3x + 1. What is the area of the triangle? A = 1 2 bh A 12x 2 + 4x B 6x 2 + 2x C 7x + 1 D 5x + 1
9 A.2b (d) Multiplying binomials by binomials 1. What is the product (4x - 3)(x + 4)? A 4x 2 + 8x - 12 B 4x x - 12 C 4x x - 12 D 4x x What is the product (x + 3)(5x - 2)? A 5x x - 6 B 5x x - 6 C 5x x - 6 D 5x x What is the product (3x - 2) 2? A 9x 2-4 B 9x C 9x 2-12x - 4 D 9x 2-12x The trinomial 3x 2 + 7x + 2 is depicted below using algebra tiles. What are the factors of the trinomial? A (x + 1)(3x + 2) B (x + 2)(3x + 1) C (2x + 1)(x + 3) D (x - 1)(3x - 2)
10 A.2b (e) Using polynomial operations to solve problems 1. What is the area of a square with a side of length 3x - 1? A 6x 2-1 B 9x 2-1 C 9x D 9x 2-6x A rectangle s length is 5x - 2 and width 2x - 1. What is the area of the rectangle? A 7x 2-3 B 10x 2-7x + 2 C 10x 2 + 7x - 2 D 10x 2-9x A rectangle with area x 2 + 4x + 3 is depicted below using algebra tiles. What are the dimensions of the rectangle in terms of x? A (x + 3) by (x + 1) B (3x + 1) by (x + 1) C (x + 3) by (x + 3) D (3x + 1) by (3x + 1)
11 A.2b (f) Using polynomial operations to solve problems 1. Which polynomial describes the area of the rectangle shown below? A 18x 2 B 2x + 9 C x 2 + 9x + 18 D x 2 + 3x The side of a square is represented by the binomial 2x + 5. Which polynomial represents the area of the square? A 4x 2-3 B 4x + 10 C 4x x + 25 D 4x
12 A.2b (g) Using operations with polynomials to solve problems 1. The formula for the area of the trapezoid is A = 1 2 h(b 1 + b 2 ). If h = 4x, b 1 = x and b 2 = 3x 2 + 2x - 4, which polynomial represents the area of the trapezoid? A B C D 16x 3 + 8x 2-8x 8x 3 + 8x 2-6x 8x 3 + 4x 2-4x 6x 5 + 4x 4 + 4x 3 + 8x 2-16x 2. The formula for the volume of the rectangular solid is A = lwh. Assume the following rectangular solid shown below has a square base. The side of the base is represented by the polynomial (x + 2) and the height of the solid is represented by the polynomial (3x). Which polynomial represents the volume? A 3x 2 + 6x B 3x x x C 3x 3 +12x D 6x x 3. The diagram below shows a swimming pool surrounded by a wooden deck. Which polynomial represents the area of the deck? A B C D 25x x 6x 3-24x 19x 2-4x 19x x
13 A.2b (h) Using laws of exponents to find the quotient of polynomials 1. What is the quotient (15x 4-9x 2 ) 3x? A 12x 3-6x B 5x 3-6x C 5x 3-3x 2 D 5x 3-3x 2. What is the quotient (28x x 3-8x) 2x? A 26x x 2-6 B 14x x 2-4 C 26x x 2-6x D 14x x 2-4x 3. What is the quotient (30x x x 2 ) 10x 2? A 20x x 6 + x 4 B 20x x C 3x 8 + 2x 6 + x 4 D 3x 4 + 2x What is the quotient (45x 8-27x x 4 ) 9x 2? A 5x 6-3x 4 + 2x 2 B 5x 10-3x 8 + 2x 6 C 36x 6-18x 4 + 9x 2 D 36x 10-18x 8 + 9x 6
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