Question: Math 1304 Polynomials Name___________________________________ Directions: Please show enough work to justify your answers. Perform the indicated operations. 1) (2a 5 - 6a 2 ) +

Math 1304 Polynomials Name___________________________________ Directions: Please show enough work to justify your answers. Perform the indicated operations. 1) (2a 5 - 6a 2 ) + (3a 5 - 7a 2 ) 1) 2) (-4 - 7x7 + 7x9 - 9x8 ) + (7x8 + 5x7 + 2 + 6x9 ) 2) 3) 2(-2r4 + 9r3 - 3r) - 3(8r4 - 9r3 + 6r2 - 2r) 3) 4) (-6x3 + 7x5 - 1 + 7x4 ) - (9 + 9x4 + 2x5 + 2x3 ) 4) 5) (9x4 - 2x2 + x) - (7x3 + 8x2 + 3x) + (4x2 - x) 5) 6) -4x2 (8x5 + 3x3 ) 6) 7) 3ax6 (-8ax6 + 7x4 + 3a) 7) 8) 10x4 (9x4 - 6x2 ) 8) 9) (4x + 6)(x - 4) 9) 10) (x - 9)(2x + 5) 10) 11) (-9a + 5b)(7a + 8b) 11) 12) (3p - 1)(9p2 + 3p + 1) 12) 13) (5x2 + 5x + 2)(x2 - 5x + 5) 13) 14) (x - 7)(x + 7)(x2 + 49) 14) 15) (n - 4)(n + 4) 15) 16) (11r - 2)(11r + 2) 16) 17) (5m - 3w)(5m + 3w) 17) 18) (n + 2)2 18) 19) (-7x - 6)2 19) 20) (4x + 2)3 20) B-1 Answer Key Testname: POLYNOMIALS 1) 5a 5 - 13a 2 2) 13x9 - 2x8 - 2x7 - 2 3) -28r4 + 45r3 -18r2 4) 5x5 - 2x4 - 8x3 - 10 5) 9x4 - 7x3 - 6x2 - 3x 6) -32x7 - 12x5 7) -24a 2 x12 + 21ax10 + 9a 2 x6 8) 90x8 - 60x6 9) 4x2 - 10x - 24 10) 2x2 - 13x - 45 11) -63a 2 - 37ab + 40b2 12) 27p3 - 1 13) 5x4 - 20x3 + 2x2 + 15x + 10 14) x4 - 2401 15) n 2 - 16 16) 121r2 - 4 17) 25m 2 - 9w2 18) n 2 + 4n + 4 19) 49x2 + 84x + 36 20) 64x3 + 96x2 + 48x + 8 B-2 Math 1304 Name___________________________________ Quadratic Functions Directions: Please show enough work to justify yourr answers. Identify the vertex of the parabola. 1) y = x2 - 12x + 46 1) 2) y = 3x2 - 24x + 51 2) 3) y = 2x2 + 20x + 51 3) Determine without graphing, whether the given quadratic function has a minimum value or maximum value. Then find the coordinates of the minimum or maximum point. 4) f(x) = x2 + 2x - 4 4) 5) f(x) = -2x2 + 2x 5) Sketch the graph of the parabola. 6) y = x2 + 2 6) y 10 5 -10 -5 5 10 x -5 -10 7) y = - 4 2 x +4 5 7) y 10 5 -10 -5 5 10 x -5 -10 B-1 8) y = x2 - 2x - 4 8) y 10 5 -10 -5 5 10 x -5 -10 9) y = 4x2 - 2x - 9 9) y 10 5 -10 -5 5 10 x -5 -10 Solve the problem. 10) The number of mosquitoes M(x), in millions, in a certain area depends on the June rainfall x, in inches: M(x) = 9x - x2 . What rainfall produces the maximum number of mosquitoes? 11) John owns a hot dog stand. He has found that his profit is represented by the equation P(x) = -x2 + 80x + 84, with P being profits and x the number of hot dogs sold. How many 10) 11) hot dogs must he sell to earn the most profit? 12) Bob owns a watch repair shop. He has found that the cost of operating his shop is given by c(x) = 4x2 - 256x + 49, where c is cost and x is the number of watches repaired. How many watches must he repair to have the lowest cost? B-2 12) Answer Key Testname: QUADRATIC EQUATIONS 1) 2) 3) 4) (6, 10) (4, 3) (-5, 1) minimum; (- 1, - 5) 1 1 5) maximum; ( , ) 2 2 9) y 10 5 6) -10 y -5 5 10 -5 5 -10 -10 -5 5 10 x 5 10 x 5 10 x 10) 4.5 in. 11) 40 hot dogs 12) 32 watches -5 -10 7) y 10 5 -10 -5 -5 -10 8) y 10 5 -10 -5 -5 -10 B-3 10 x Dalrymple Math 1304 Name:_______________________ REAL NUMBERS WORKSHEET Directions: Please perform the indicated operations. Show how you got this answer. Evaluate the expression. 1) 7 + 3 - 8 1) 2) -3 + 4 - 8 2) 3) 2 + 3 8 3) 4) 8 + 5 6 4) 5) 6 [7(2 - 3) - 3] 5) 6) 2 [2(8 - 6) - 7] 6) 7) 7 [6 + 5 (6 + 8)] 7) 8) 8 [4 + 8 (3 + 8)] 8) 9) -1 - (-6 + 4 5 - 5) 9) 10) -6 - (1 + 8 -1 - 5) 10) 11) 14 6 48 7 11) 12) 21 3 15 7 12) 13) 4 1 1+ 3 4 13) 14) 2 1 1 + 5 2 4 14) 15) 1 1 10 +7 5 2 15) 16) 1 1 5+ 10 4 6 16) 1 17) 6 + 10 8+6 17) 18) 5+2 2+6 18) 19) 9-1 1-9 19) 20) 10 - 2 2 - 10 20) 21) 1 9 + 5 13 21) 22) 1 1 + 13 9 22) 23) 6 4 7 9 23) 24) 7 1 8 4 24) 25) 26) 8 11 25) 2 15 8 11 26) 1 3 27) 1 1 1 + 2 4 6 27) 28) 1 1 1 + 6 9 7 28) 2 Answer Key Testname: REAL NUMBERS WORKSHEET FALL II 2016 1) 2 2) -7 19 3) 8 4) 53 6 5) -60 6) -6 7) 532 8) 736 9) -10 10) 6 1 11) 4 12) 3 5 13) 5 3 14) 3 10 15) 89 10 16) 269 24 17) 8 7 18) 7 8 19) -1 20) -1 58 21) 65 22) 22 117 23) 26 63 24) 5 8 25) 60 11 26) 24 11 27) 13 24 28) 23 126 3 Math 1304 Name___________________________________ Square Roots and Quadratic Equations Directions: Please show enough work to justify your answers. Simplify the square root. 1) 144 1) 2) 153 2) 3) 21 3) 4) 24 4) 5) -16 5) 6) -64 6) 7) -184 7) 8) 147 8) 9) - 9) -220 Use the quadratic formula to solve the equation. 10) x2 + 6x - 7 = 0 10) 11) x2 + 12x + 36 = 0 11) 12) x2 + 14x + 35 = 0 12) 13) x2 - 8x + 32 = 0 13) 14) 4x2 - 3x - 7 = 0 14) 15) 3x2 + 10x = - 4 15) 16) 4x2 + 1 = 3x 16) 17) x2 - 12x + 52 = 0 17) 18) (x + 1)(x - 6) = 3 18) 19) (x + 8)(2x - 9) = 2(x - 1) - 72 19) 20) 4 2 4 x - x = -1 9 3 20) B-1 Answer Key Testname: SQUARE ROOTS AND QUADRATIC EQUATIONS 1) 12 2) 3 17 3) 21 4) 2 6 5) 4i 6) 8i 7) 2i 46 8) 7 3 9) -2i 55 10) 1, - 7 11) -6 12) -7 - 14, -7 + 13) 4 - 4i, 4 + 4i 7 14) , -1 4 14 15) -5 - 13 -5 + 13 , 3 3 16) 3-i 7 3+i 7 , 8 8 17) 6 - 4i, 6 + 4i 5 - 61 5 + 61 18) , 2 2 19) - 2, 20) 1 2 3 2 B-2

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