Review for Math 112 Test #1 Solutions

1. Solve for x :
2. Solve for x :

all real number :

3. Solve for x :

Multiply by LCD :12

4. Solve for x: .
Multiply by LCD :

 

 

 


 

ck:


checks!

 

5. Solve for x:

 

6. Solve for x:

7. Use the square root property to solve :

8. Use the square root property to solve:

9. Solve by completing the square :
10. Solve by completing the square:

 

11. Solve by the quadratic formula :

12. Solve by the quadratic formula :

13. Solve by the quadratic formula :

14. Solve the equation :

 

ck:


so checks!

15. Solve the equation :

16. Solve the equation :

 

ck:


so checks!

so checks!

 

17. Solve the equation:
ck:


so checks!

 

18. Solve the equation:
ck:

so and both check!

19. Solve the equation
Critical Numbers
Test Intervals
Test Values

so the answer is only the one that works:

20. Solve the equation:
Critical Numbers
Test Intervals
Test Values

so the answers are only the ones that work:

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