What is the quickest way to refresh my memory on quadratic equations?

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Discussion Overview

The discussion focuses on refreshing knowledge about quadratic equations, specifically the process of expanding and graphing them. Participants share methods for understanding the concept and express their needs for clarity in preparation for an upcoming project.

Discussion Character

  • Homework-related
  • Technical explanation

Main Points Raised

  • One participant expresses uncertainty about how to correctly exponentiate expressions like (x-1)^2 and (x+2)^2, indicating a need for clarification.
  • Another participant provides the formula for expanding (x+a)^2 as x^2 + 2xa + a^2, suggesting this as a method to understand the expansion process.
  • A participant asks for clarification on how to square (x+5), indicating a desire for step-by-step guidance.
  • One participant explains the expansion using a numerical example (12^2) to illustrate the concept of squaring a binomial and relates it to the algebraic expansion of (x+a)^2.
  • Another participant expresses satisfaction after receiving help, indicating that they now understand the concept better.

Areas of Agreement / Disagreement

The discussion does not appear to have significant disagreement, as participants are collaboratively working through the concepts, but there is a lack of consensus on the initial participant's understanding of the topic.

Contextual Notes

Some participants mention difficulties with organization and note-taking, which may affect their understanding of the material. There is also a reliance on specific examples and methods that may not cover all aspects of quadratic equations.

frankensteak
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i learned this a few weeks ago and now i have a project due tomorrow and i want to make sure in doing this right before i make useless graphs...

like: (x-1)^2+3

or (x+2)^2

i can't remember how to exponent that ****...
 
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(x+a)^2=x^2+2xa+a^2

Was it the question that you were asking that was cencored? Or are you asking how to graph the functions?
 
Last edited:
how did you do that
 
im asking..

how to (x+5)squared
 
Think of it this way.

12^2 =(10+2)*(10+2)=10*10+10*2+2*10+2*2=100+20+20+4=144
(x+a)^2=(x+a)*(x+a) =x*x+x*a+x*a+a*a=x^2+2xa+a^2

Are you familiear with FOIL?

(x+5)^2 (a=5)=x^2+2ax+a^2=x^2+2*5*x+5^2=x^2+10x+25
 
no.. i get it..

i tried to find my notes but organization isn't really my thing..
but i got it now, thanks to you! :D

mucho grassy ass
 

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