# sm09rew2 - MAC 1140 EXAM 2 REVIEW SUMMER 2009 1. Solve the...

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SUMMER 2009 1. Solve the following equations a. 8 x (3 x + 2) = 3 x 10 b. 4 x 2 = 3 x +5 + 7 ( x +5)( x 2) c. x ( x 8) = 12 d. 4( x 2) x 3 + 3 x = 3 x ( x 3) e. (3 x 2) 2 = 4 f. x 2 6 x = 13 (Complete the square) g. 2 x 2 + 5 x + 3 = 0 h. p 15 2 x = x i. p 3 x + 7 + p x + 2 = 1 j. 4 2 x j = 3 k. x 2 10 x = x 10 2. Use the discriminant to determine whether the quadratic equation has two di/erent real solutions, one real (repeated) solution, or no real solution a. 9 x 2 30 x + 25 = 0 b. x 2 + 4 x + 7 = 0 3. Solve the inequalities, expressing the answer using interval notation a. 8 4 (2 x ) 2 x b. 0 < 3 x +2 2 < 4 c. j x + 4 j + 3 < 5 d. x 2 j ² 1 e. x 2 > 0 f. j 2 x + 1 j + 2 > 0 4. Which of the following expressions are correct? a. (3 x + 6) 2 = 3 ( x + 2) 2 b. p x 2 + 16 = x + 4 c. 1 a + 1 b = a + b ab 5. The lenght of one of the sides of a triangle is 7 inches and the lenght of the hypotenuse is 25 in. What is the lenght of the third side of the

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## This note was uploaded on 07/12/2011 for the course MAC 1140 taught by Professor Williamson during the Fall '08 term at University of Florida.

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sm09rew2 - MAC 1140 EXAM 2 REVIEW SUMMER 2009 1. Solve the...

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