6A568E75 V1 - Page 6 69) What are the roots of the equation 5x-2 Questions 74 through 76 refer to the following: - 7x + 1 = 0? Solve the given expression using the quadratic A) -7+29 C) 7+v69 formula. [Express the answer in simplest radical 10 10 form. ] B) 7+v29 D) -7+v69 10 10 74) 2w = 4+5 75) 1 - 1+2=0 70) The roots of the equation 76) x + 3 = 2 2x2 + 7x +4 =0 are A) 7+v17 C) -7+V17 77) Solve for a: 72-7a+10 2 B) 7+V17 D) -7+V17 78) Find the roots of 3x2 + 5x - 4 =0 to the nearest tenth. 71) The roots of the equation 2x2 + 5x - 2 =0 79) Which of the following is a polynomial equation whose roots are +1 and +2? are A) -5+V41 C) - 7, -2 A) x4 + 5x2 +4=0 B)x1 +4=0 B) 5+V41 D) 2, - C)24 - 1=0 D) 24 - 5x2 +4=0 72) What are the roots of 5x(x + 4) = 6 to the nearest hundredth? 80) Which of the following polynomial A) -0.28, -4.28 C) -0.28, 4.28 equations has roots of +v3 and +v5? B) 0.28, -4.28 D) 0.33, -3.67 A) x2 - 2x2 - 15 =0 B) x2 + 8x2 + 15 = 0 C) 24 - 8x2 + 15 = 0 D) x2 - 15 = 0 73) Solve for x to the nearest hundredth: 6x2 +5 = 27 A) +1.91 B) +2.31 C) +3.33 D) 0.61