Question

Anyone good with polynomials? i need help.

Answer 1

????

Answer 2

i was asking before i posted the question

Answer 3

what is your question?xD

Answer 4

Since you asked...

For this Applied Knowledge Assessment, you will develop your understanding of polynomial functions. You will explore solutions through graphical and algebraic methods.

Polynomials


This assessment is worth 75 points. Show all of your work on this sheet and submit one document.



INTRODUCTION
In this Applied Knowledge Assessment, you will work with polynomial functions. First, you will determine the number and type of possible solutions for polynomial functions. When you are finished, you will find the solutions to some other functions. Finally, you will show that you are able to use the power of graphing to find the solutions to polynomial equations.



ACTIVITY 1: FINDING POSSIBLE SOLUTIONS
Look at an example of how to find the number and type of possible solutions for an equation.

Examine the following equation: x3 + 4x2 + 5x – 1 = 0. This equation has a degree of 3 (since the largest exponent you see is a cube).

• This means you have 3 complex roots.
• It also means you could have 1 or 3 real roots. The reason you can have either 1 or 3 real roots is because imaginary roots always come in pairs; therefore, this equation will either have 1 real root and 2 imaginary roots or 3 real roots and no imaginary roots.


Determine the number and type of complex solutions and possible real solutions for each of the following equations.

1) 2x2 + 5x + 3 = 0

2) 4x3 – 12x + 9 = 0

3) 2x4 + x2 – x + 6 = 0



ACTIVITY 2: ZEROS
Find all of the zeros of the equations below. Show all of your work.
4) x3 – 5x2 + 6x = 0
5) x4 – 8x2 – 9 = 0
6) 5x3 – 5x = 0


ACTIVITY 3: GRAPHING
Find the number of real solutions to the functions below by graphing. To see a demonstration of how to do this, please refer to Example 1 on page 358 of your book. Please be sure to include the graphs as well as the number of real solutions that your graphs indicate for each problem.

You may use a graphing calculator and then sketch a graph similar to what the calculator gives you, or you may use an online graphing utility such as www.gcalc.net. (Once you go to the website, be sure to use “GCalc 2 applet” on the right of the page). If you use an online graphing tool, it is easiest to then include screenshots of your work for the problems below. For directions regarding how to take a screenshot, please go to your course page in Blackboard and then click on the “Getting Started” tab on the left. Choose the “Computer Basics” link as you scroll down, then choose the “Screenshot Directions” link located on that page. The website http://take-a-screenshot.org/ may also help you to learn to take a screenshot.
7) x + 3 = (x – 5)2
8) x4 = x – 10
9) x3 = 5 – x

Answer 5

to find the solutions you need to use the quadratic formula "the monster"

Answer 6

\[\frac{ -b \pm \sqrt{b^2-4ac}}{ 2a or c }\]

Answer 7

okie ill do that later on tonigt got work cx so algebra 2 at 12 in the morning is always fun cx thanmk you