MATH: Arithmetic Number Theory and Business Math



 


Simplify expressions involving series of operations.

1. Perform the indicated operations: 2[3 + (-1) - 4]
A. -2
B. -3
C. -4
D. -5

2. Simplify: ½[5 - (-1)] + (-6)
A. -1
B. -3
C. -5
D. -7

3. Perform the indicated operations: 2³ + (-7 + 11)²
A. 14
B. 24
C. 34
D. 44

4. Simplify: -9+3²/2²-1
A. 7
B. 4
C. 3
D. 0

For numbers 5-9, consider the functions below:

f (x) = 3x² + 4x - 5
g (x) = 3x + 9
h (x) = x + 3

5. What is (f + g) (x)?
A. 3x² + 7x - 4
B. 3x² + 7x + 4
C. 3x² - 7x - 4
D. 3x² - 7x + 4

6. What is (h - f) (x)?
A. 3x² - 3x + 8
B. -3x² + 3x + 8
C. 3x² - 3x - 8
D. -3x² - 3x + 8

7. What is (h/g) (x)?
A. ⅓
B. 3
C. x + 3
D. 3x + 9

8. Evaluate f (0) + g(-1)
A. 1
B. 4
C. 5
D. 8

9. Evaluate [g(2)][h(-1)]
A. 15
B. 30
C. 45
D. 60

10. What is the sum of x + 7 and -4x - 5?
A. x + 3
B. 2x + 8
C. -5x + 12
D. -3x + 2

11. Simplify: (2x + 1)(x - 4)
A. 2x²
B. x² - 7x
C. 2x² - 7x - 4
D. x² - 7x - 4

12. Simplify: (5x⁴ + 2x³ -x² + 3x - 4) + (-2x³ - 3x + 4)
A. 5x⁴ - x²
B. 5x⁴ - x² + 8
C. 5x⁴ -x² + 6x
D. 5x⁴ + 4x³ - x²

13. What is the remainder of x² + 4x - 5 divided by x + 2?
A. x+2
B. 9/x+2
C. - 9/x+2
D. -1

14. What is the quotient of 15x² - 17x - 4 divided by 5x + 1?
A. 3
B. 3x
C. -3x
D. 3x - 4

15. Perform the indicated operations: 6-(-2)/2
A. 3
B. 4
C. 5
D. 6


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