Question: fName: Date: Per: Unit 4 Study Guide Rational Expressions 1. Add. Simplify your answer. Find the excluded 2. Subtract. Simplify your answer. Find the values.

\fName: Date: Per: Unit 4 Study Guide Rational Expressions 1. Add. Simplify your answer. Find the excluded 2. Subtract. Simplify your answer. Find the values. excluded values. 5x + 4 8- x 2x2 + 5x - 9 x2 - 4x -5 x2 - 25 x2 - 25 x2 - 4x - 12 x2 - 4x -12 3. Add. Simplify your answer. Find the excluded 4. Multiply. Simplify your answer. Find the values. excluded values. 3x2 + 6x - 8 -2x2 + x x2 - 4 4x - 24 7x - 14 7x - 14 x2 - 36 - X x2+ 12x+20 5. Multiply. Simplify your answer. Find the excluded 6. Divide. Simplify your answer. values. x2+ 7x + 6 x2 - 4x - 5 x+9 O X ( x + 4) x2 + 3x - 18 x2 - 9 x2 - 3x -28 7. Divide. Simplify your answer. 8. Divide. Simplify your answer. x - 3 x - 4 x +3 x x - 9 xz+x- 20 x - 5\fName: Date: Per: 9. Divide. Simplify your answer. 10. Add. Simplify your answer. 1 - X 1 9 - x2 x +3 - 1 11. Divide. Simplify your answer. 12. Solve. Simplify your answer. 1 x - 2 = 15 it x X 13. Solve. Simplify your answer. 14. Solve. Simplify your answer. 72 3x + 54 3 5 3x + 6 3x + 6 x+ 4 4x 15. Solve. Simplify your answer. 1. 4x+12 3 2 3 x2-25 9. x+1 x-+9x-4 3 x - 1 2x 2x 2. x2-4x-121 X# 6, -2 10. - - (x-3)(x+3) 3. x2 +7x-8 7x-14 Fix # 2 11. 4(x+9 ) 4. (x+6)(x+10);*#-6,-10 5. x+9 X-zix# 7,-4 12. x = 5 or - 3 *+3 b. X-5 13. x = 9 or - 6 X-3 7. 14. x = 20 X-9 8. x(x-5 x+5 15. x = -5

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