Need Help On A Few Exam Review Problems

Can anyone help me out on a few or all these problems they are the ones I am cant seem to get. =(

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58. Find a formula for a sum n for the arithmetic sequence.

$\displaystyle a1=-2,d=-6$

59. Find a formula for a sum n for the arithmetic sequence.

$\displaystyle a514,a14=50$

69. Use the Binomial Theorem to expand and simplify the expression.

$\displaystyle (q+5)^5$

70. Find the specified nth term in the expansion of the binomial. (write the expansion in descending powers of x.)

$\displaystyle (3x-2y)^8,n=5$

44. Find gºf

$\displaystyle f(x)=x-2,g(x)=x^2$

20. Use Descartes' Rule of Sings to determine the possible number of positive and negative zeros.

$\displaystyle f(x)=5x^5+10x$

13. Find the zeros of the function below algebraically, if any exist.

$\displaystyle f(x)=9x^3-48x^2+64x$

13. Find a third degree polynomial function of the lowest degree that has the zeros below and whose leading coefficient is one.

$\displaystyle 2,0,6$

11. Find the zeros of the function below algebraically, if any exist.

$\displaystyle f(x)=x^5-26x^3+25x$

10. Describe the right-hand and the left-hand behavior of the graph.

$\displaystyle u(x)=-2x^4+3x^3+13$

6. Find the value(s) of x for which f(x)=g(x)

$\displaystyle f(x)=x^2+15x-23,g(x)=9x+4$