1. Subtract. Simplify if possible:
(Simplify your answer)
![1626_4.png](https://secure.tutorsglobe.com/CMSImages/1626_4.png)
2. Solve w2-8w-20=0 The solution to w is:
3. Simplify by removing factors of 1.
![418_4.png](https://secure.tutorsglobe.com/CMSImages/418_4.png)
Simplified form?
4. Factor completely
16v2+25-40v
5. Subtract the polynomials:
(-5s2+4s+4) - (7s2+4)
(Simplify your answer)
6. Add simplify if possible.
(Simplify your answer)
![1072_4.png](https://secure.tutorsglobe.com/CMSImages/1072_4.png)
7. Rewrite the following expression with positive exponents:
(6xy) (the -5/8 is raised above the (6xy)
(Need the correct equivalent equation)
8. Solve. s2+7s-18=0
(s+9)(s-2)=0
9. Rewrite with a rational exponent.
![1608_4.png](https://secure.tutorsglobe.com/CMSImages/1608_4.png)
(Simplify answer)
10. Simplify by factoring. Assume that all expressions under radicals represent nonnegative numbers. (Exact answer/using radicals if needed)
![1799_4.png](https://secure.tutorsglobe.com/CMSImages/1799_4.png)
11. Find the x-intercepts for the graph of the equation y=x2-2x-8 What are the x-intercepts?
12. Simplify by removing factors of 1.
![1003_4.png](https://secure.tutorsglobe.com/CMSImages/1003_4.png)
Simplified form?
13. Factor the trinomial v3-2v2-48v (Factor completely)
14. Factor completely 2x4-4x3+4x2 Complete factorization is? Answer in factored form
![2202_4.png](https://secure.tutorsglobe.com/CMSImages/2202_4.png)
(Simplify answer integer of fraction)18. Multiply and simplify by factoring. Assume that all expressions under radicals represent non negative numbers.
![1534_4.png](https://secure.tutorsglobe.com/CMSImages/1534_4.png)
![1121_4.png](https://secure.tutorsglobe.com/CMSImages/1121_4.png)
![2180_4.png](https://secure.tutorsglobe.com/CMSImages/2180_4.png)
28. Find the vertex, line of symmetry, maximum or minimum value of the quadratic function.
![602_4.png](https://secure.tutorsglobe.com/CMSImages/602_4.png)
29. Evaluate the polynomial for x=6
3x2 -4x +1
(Simplify answer)
30. Multiply:(Simplify answer, type exact answer using radicals as needed)
![534_4.png](https://secure.tutorsglobe.com/CMSImages/534_4.png)
31. Use rational exponents to write
![438_4.png](https://secure.tutorsglobe.com/CMSImages/438_4.png)
(the x, y and z are all below to the left of the denominators)
32. For the following equation, state the value of the discriminant and then describe the nature of solutions.
![1544_4.png](https://secure.tutorsglobe.com/CMSImages/1544_4.png)
Value of discriminate?
Are there two imaginary solutions, one real solution or two real solutions?
33. Multiply:
![1358_4.png](https://secure.tutorsglobe.com/CMSImages/1358_4.png)
34. Find a polynomial for the perimeter and for the area: one side = d and the other is d + 8.
Perimeter is? (Simplify/do not factor)
Area is? (Simplify/do not factor)