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Name _______________________________________ Date __________________ Class __________________ Rational Expressions Review Sections 6.2 & 6.3 Solve. 1. Find the values for which x3 x+5 is undefined. 2 - 7x + 12x __________________________________________________________________ Write the rational expression in lowest terms. 1–w w2 - 1 2. 36c5d4 96cd8 3. _______________________________ _____________________________ Mulitply or divide. Write the answer in lowest terms. 4. 9t + 36 5 10t + 40 6 _______________________________ 6. a2 – 49 2a - 14 c2 +7c + 10 c2 + 2c – 15 5. 4c + 12 3c + 15 _____________________________ 8 a+7 7. _______________________________ 5xy2 4x2 8x3y 15y5 _____________________________ Find the least common multiple/denominator for each set of expressions: 8. 5 , 6ab3 -7 2a2 , 9 4b2 _____________________________________ 9. x–3 , 2x2 – 9x + 4 2x + 7 2x2 + 9x - 5 __________________________________ © Houghton Mifflin Harcourt Publishing Company Holt McDougal Advanced Algebra Name _______________________________________ Date __________________ Class __________________ 10. x2 x 2 and x2 x 6 ______________________________________ Add or subtract. Write the answer in lowest terms. 11. 3r + 1 r–4 - r+9 r–4 12. x+2 3x + 9 + - 2x + 3 5x + 15 __________________________________ ________________________________ 13. 3x+ 1 4x - 5 x + x2 – x - 2 - x-1 4x - 5 14. __________________________________ 15. Simplify the complex fraction: -2 x2 – 4 ________________________________ t–3 6 t2 – 9 15 ________________________ Solve the equation: 16. x2 – 4 = 1 x–2 _______________________________ 17. x2 + x – 12 = - 7 x+4 ________________________________ © Houghton Mifflin Harcourt Publishing Company Holt McDougal Advanced Algebra