University:
Glendale Community College
Course:
MAT140 | College Mathematics
Academic year:

2020
Views:

154

Pages:

6
Author:

Davon Fischer

Chapter 1: Factoring and Quadratic Equations Section 1.7: A Review of all the Factoring Strategies – Mixed Up #1-44: Factor completely, state if a polynomial is prime. 1) a2 + 16 3) 81y2 – 4 5) b3 + 64 7) 64x3 – 1 9) 2x2 – 3x – 9 11) -4x2 + 6x + 18 13) 3x2 – 13x + 10 15) -w2 + 8w – 15 17) x2 – 2x + 15 19) 5x2 + 10x + 6x + 12 21) x2 + 5x + 9 Chapter 1: Factoring and Quadratic Equations 23) 6x4 – 6x 25) 2x2 – 8 27) 3x2 + 12 29) 3x2 – 5x – 6x + 10 31) x2 + x + 24x + 24 33) 6x2 + 13x + 6 35) -x2 + 5x + 6 37) -3x2 – 12x +36 39) z2 – 5z + 4 41) x2 – 14x – 15 43) a2 – a – 2 Section 1.8 Solving Quadratic Equations by Factoring #1 - 21: Solve each equation. 1) (x – 3)(x + 2)=0 3) (x – 1)(x – 7) = 0 Chapter 1: Factoring and Quadratic Equations 5) (3x + 12)(2x – 8) = 0 7) (2x – 9)(3x + 10)=0 9) (5x – 7)(3x – 11) = 0 11) 7x(x – 1)(x + 2) = 0 13) 5x(2x + 10)(4x + 20) = 0 15) x(x – 3)(x + 5) = 0 17) 7(x – 1)(x – 2) = 0 19) 2(5x – 30)(3x + 18) = 0 21) 6(2x – 9)(5x – 1) = 0 #22 - 42: Solve each equation. 23) x2 – 14x + 45 = 0 25) x2 – 5x – 6 = 0 27) b2 – 25 = 0 29) 49y2 – 16 = 0 Chapter 1: Factoring and Quadratic Equations 31) 5x2 + 9x + 4 =0 33) 3x2 – 5x – 2 = 0 35) 2x2 + 5x + 3 = 0 37) x2 – x – 6 = 0 39) 25y2 – 81 = 0 41) 3y2 + 5y – 2 = 0 Chapter 1: Factoring and Quadratic Equations Section 1.8 Solving Quadratic Equations by Factoring #43 - 60: Solve each equation. (Remember to factor out the GCF first) 43) 3x3 + 5x2 + 2x = 0 45) 4x2 + 2x – 6 = 0 47) 5x2 – 20 = 0 49) 3x3 – 15x2 + 18x = 0 51) 3x2 – 15x – 18 = 0 53) 10x2 + 18x + 8 = 0 55) 10x3 + 18x2 + 8x = 0 57) -2x2 +10x + 12 = 0 59) x3 – 49x = 0 #61 - 78: Solve each equation. 61) r(r + 1) = 12 63) x(x – 4) = -3 65) (x – 2)(x – 3)= 6 Chapter 1: Factoring and Quadratic Equations 67) (x + 1)(x – 4) = -18 69) 3x(x + 1) = -6 71) (2x – 3)(x + 2) = 4 73) x(x – 3) +2 = 30 75) 2x(x – 3) = 5x(x– 4) +8 77) x(x – 4) + 1 = x + 7