# For questions 1-3, simplify the polynomial.

1. 14x^2 + 4 + 3x - 12x^2 - 3 + 11x

2. 3x^2 + 6 - 2x + 5x - 4x^2 + 9

3. 2x^2 + 6x - 7x + 8 - 3x^2 + 1

4. In the expression -7x - 3x^2 + 5, what is the coefficient of x?

Add or subtract.

5. (m^2 - m + 3) + (m - 1)

6. (4x^2 - 2x - 1) - (-3x^3 + 2)

7. Suppose you earned 8t - 3 dollars on Monday and 6t + 5 dollars on Tuesday. What were your total earnings? Simplify your answer.

8. f^2 * f^3

9.100^12/100^8

10. x^16/x^3

11. 4^4 * 4^10

12. 4^4 * 4^44

Write the value of the expression.

13. 2^3/2^3

14. 4^7/4^9

Multiply. Write the result in scientific notation.

15. (8*10^3)(7*10^5)

16. (2.2*10^-3)(4*10^-2)

Simplify the expression.

17. 6t^3 * 6t^3

18. -3(4x + 5)

19. 4k^2(-3k^2 - 4k + 5)

20. (-4x) * 9x^2

21. (6y^2 - 4y) + (7y^2 - 7y)