8.2.3 Solving Radical Equations and Inequalities - Worksheet (continued)
Example 4: Solve each equation. 16. x ( 5) 3 1 2 − =
1 3 + =
1 2 + =
17. x (2 1)
18. x
x
2
(4 5)
1 3 − = −
1 2 + =
x x (45 9 ) 5 1 2 − = −
19. x 2( 50)
20. x 2( 1)
21.
10
1
Example 5: Solve each inequality. 22. x 5 1 4 + − ≤
23. x 2 6 10 + ≤
24. x 2 5 5 + <
Example 6: 25. The formula s
d 21 = relates a stunt car’s speed s in miles per hour at the beginning of a skid to the length d of the skid in feet. A stunt driver must skid her car to a stop just in front of a wall. When the driver starts her skid, she is traveling at 64 mi/h. When the driver comes to a stop, how many feet will be between her car and the wall? Round to the nearest foot.
200 ft
skid
227
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