Chapter 8 Test Form 2B - 8th Grade Math

1 NAME _____ DATE _____ PERIOD _____ Chapter 8 73 Glencoe Algebra 1 chapter 8 test , form 2B SCORE _____ Write the letter for the correct answer in the blank at the right of each question. 1. Write ! + 4x 3 ! + 6 in standard form . A 3 ! + ! + 4x+ 6 C 6 + 4x 3 ! + ! B ! 3 ! + 4x + 6 D 6 3 ! + 4x + ! 2. Find (3 ! 8c + 5) + ( ! 8c 6). F 3 ! 1 G 4 ! + 11 H 4 ! 16c 1 J 2 ! 16c 1 3. Simplify 3 !(4b + 7) 2b ( ! 5b 3) 6(b 2). A 14 ! + 11 ! 12b 12 C 41 ! + 12 B 14 ! + 31 ! + 12b + 12 D 10 ! + 31 ! + 12 4. Factor 88 ! ! + 24 !b 32a ! completely. F 8 ! ! (11 + 3b 4a) H 8ab(11ab + 3a 4b) G 2ab(44ab + 12a 16b) J (11 !)

2 + 8b)(8a 4 !) 5. Find (3y + 4z)(3y 4z). A 9 ! 16 ! C 9 ! 24yz 16 ! B 9 ! + 16 ! D 9 ! 24yz + 16 ! 6. Solve (3m 2)(9m + 5) = 0. F !! ,!! G !! ,!! H !! ,!! J !! , !! 7. Factor ! 11x + 18. A (x 2)(x 9) C (x 2)(x + 9) B (x + 2)(x 9) D (x + 2)(x + 9) 8. Find ( 2 !+ )!. F 4 ! + ! H 4 ! 4 !n + ! G 4 ! + ! J 4 ! 4 !n + ! 9. Solve ! = 15y 56. A {7, 8} B { 7, 8} C { 7, 8} D {7, 8} 10. Find (3x + 2)(4 ! 2x 7). F 12 ! + 2 ! 25x 14 H 12 ! + 14 ! + 25x + 14 G 7 ! + 9 ! 25x 14 J 7 ! + 7 ! 4x 5 11. Factor 7 ! 16x + 4. A (x 3)(7x + 5) C (x + 2)(7x 4) B (x 4)(7x + 1) D (x 2)(7x 2) 1.

3 _____ 2. _____ 3. _____ 4. _____ 5. _____ 6. _____ 7. _____ 8. _____ 9. _____ 10. _____ 11. _____ NAME _____ DATE _____ PERIOD _____ Chapter 8 74 Glencoe Algebra 1 chapter 8 test , form 2B (continued) 12. Solve 5 ! + 13x = 6. F3 , !! G 3 ,!! H 3 ,!! J 3 , !! 13. Factor 196 ! 81 !. A (14w + 9z)(14w + 9z) C (14w + 9z)(14w 9z) B (14w 9z)(14w 9z) D prime 14. Solve 4(5 2n) = 8( 6 5n). F !! G !"! H !! J !!" 15. Solve x(x + 3) 2 = 2 + x(x + 1). A 2 B 2 C 1 D 0 16. Which binomial is a factor of 80 ! 120y + 45? F 4y 3 G 8y 9 H 16y 9 J 8y 15 17. If the area of a square is multiplied by sixteen, the area becomes 25 square inches.

4 Find the length x of a side of the square. A !"!" in. B !! in. C !! in. D !! in. 18. GOLF Sisika hit a golf ball into the air with an initial upward velocity of 56 feet per second. The height h in feet of the ball above the ground can be modeled by h = 16 ! + 56t, where t is the time in seconds after Sisika hit the ball. Find the time it takes the ball to reach 49 feet above the ground. F 3!! s G !!" s H 1!! s J 1!! s 19. The product of two consecutive even integers is 224. Find their sum. A 30 or 30 B 34 or 34 C 26 or 26 D 32 or 32 20. The length of a rectangle is 5 times the width. The area is 125 square centimeters. What is the length?

5 F 5 cm G 25 cm H 10 cm J 30 cm Bonus List all the possible values for k where n2 + kn 20 is factorable. 12. _____ 13. _____ 14. _____ 15. _____ 16. _____ 17. _____ 18. _____ 19. _____ 20. _____ B. _____