Question: 18. Find the solution set of x2 + 2x - 8> 0. a. {x: -4 2} c. {x: - 2 4}Write the letter of the

18. Find the solution set of x2 + 2x - 8> 0. a. {x: -4 2} c. {x: - 2 4}Write the letter of the correct answer. 1. Simplify (x3 - 3x2 - 2x + 5) - (x2 - 2x + 2). a. -x +7 C. x3 - 4x2 + 3 b. x3 - 2x2 - 4x + 3 d. x3 - 4x2 - 4x + 3 2. Simplify p(p - 2q) + 3(pq - q2). p 2 + pq - 392 3. a. p-+ pq - q2 c. p2 - 29 + 3pq - q2 d. p2 - 5pq - 3q2 3. Simplify (-x3) 2x4. a. -x10 b. x 24 C. d. xlo\f18. Which relation graphed below is a function? 3-10 YA b. d. YA a. C . O O . . .9. Find the LCM of 9a2b2c, 15a2b3, and 6a362. a. 45abc c. 180a3b3 c d. 90a3b3c b. 90a262 10. Factor 412 + 4t + 1 completely. a. 4t(t + 1) + 1 b. 4 (+ + + + 1) c. (2t + 1)2 d. (2t - 1)2 11. Factor 3x3 - 27x completely. a. 3x(x - 3)2 b. 3x(x + 3)(x - 3) c. 3(x - 3) (x2 + 3x + 9)' d. 3(x + 3)(x2 - 3x + 9) 12. Factor x2 - x - a - a2 completely. a. (x + a)(x - a- 1) b. x(x - 1) - a(1 + a) c. (x - a)(x + a - 1) d. (x -'a)(x ta+ 1)Find an equation in standard form for each line. 7. The line through (-1, 2) having slope - A a. 3x + 4y = 5 b. - 3x + 4y = 11 c. 4x + 3y =2 d. 4x + 3) = 5

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