SOLUTION: Hi, I have two questions, that I think I aby all four sides so 72.and the width is 144.P= 2l+2w so I am just looking for affirmation. Second question- there are several simil

Algebra ->  Rectangles -> SOLUTION: Hi, I have two questions, that I think I aby all four sides so 72.and the width is 144.P= 2l+2w so I am just looking for affirmation. Second question- there are several simil      Log On


   

Question 409153: Hi,
I have two questions, that I think I aby all four sides so 72.and the width is 144.P= 2l+2w so I am just looking for affirmation.
Second question- there are several similar ones in the back data of algebra.com, and I used them as a reference, NUmber of tickets sold each day for handels Messiah is given as N(x)=0.5x^2+10x+15 where x is the number of days,since the concert was first announced, when will daily ticket sales peak, and how many will be sold? Here is my answer- They will peak at 59 days and a total of 1,191 tickets will be sold. I tried to use a template so I know this one may be way off.
Thank you for your time, and if you cant get it, I am appreciate the effort. Math has never been a plus for me, and imaginary solutions, make me long for long division.
Answer by Jeef Gorrdon(26) About Me  (Show Source):
You can put this solution on YOUR website!
Solved by pluggable solver: SUBSTITUTION solver -- compute expression given values
Your Result:


YOUR ANSWER


  • Graphical form: x%5E2-2x simplifies to 3
  • Text form: x^2-2x simplifies to 3
  • Cartoon (animation) form: simplify_cartoon%28+x%5E2-2x+%29
    For tutors: simplify_cartoon( x^2-2x )
  • If you have a website, here's a link to this solution.

DETAILED EXPLANATION

Look at highlight_red%28+x+%29%5E2-2%2Ax.
Replaced x with 3
It becomes highlight_green%28+3+%29%5E2-2%2Ax.
Look at highlight_red%28+3+%29%5Ehighlight_red%28+2+%29-2%2Ax.
Replace constants in factor: highlight_red%28+3+%29,highlight_red%28+2+%29 with highlight_green%28+9+%29
It becomes highlight_green%28+9+%29-2%2Ax.
Look at 9-2%2Ahighlight_red%28+x+%29.
Replaced x with 3
It becomes 9-2%2Ahighlight_green%28+3+%29.
Look at highlight_red%28+9+%29-highlight_red%28+2%2A3+%29.
Replace constants in expression: highlight_red%28+9+%29,highlight_red%28+-2%2A3+%29 with highlight_green%28+3+%29
It becomes highlight_green%28+3+%29.
Result: 3

Universal Simplifier and Solver


Done!