7. x? - 3x - 10 <0 8. x + 3x - 10 >0 9. x - 4x > 0 10. x + &x > 0 11. x - 9 < 0 12. x - 1< 0 13. x + x > 12 14. x + 7x < -12 15. 2x < 5x + 3 16. 6x < 6 + 5x 17. x - x + 1s0 18. x + 2x + 4 >0 19. 4x2 + 9 < 6x 20. 25x2 + 16 < 40x 21. 6(x2 – 1) > 5x 22. 2(2x² – 3x) > -9
7. x? - 3x - 10 <0 8. x + 3x - 10 >0 9. x - 4x > 0 10. x + &x > 0 11. x - 9 < 0 12. x - 1< 0 13. x + x > 12 14. x + 7x < -12 15. 2x < 5x + 3 16. 6x < 6 + 5x 17. x - x + 1s0 18. x + 2x + 4 >0 19. 4x2 + 9 < 6x 20. 25x2 + 16 < 40x 21. 6(x2 – 1) > 5x 22. 2(2x² – 3x) > -9
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter2: Working With Real Numbers
Section2.3: Rules For Addition
Problem 7P
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In Problems 7–22, solve each inequality
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