 |
Completing the square of ax2+bx+c
If you happen to be in Mr.McDonald's class in Putnam City West high school this might be useful. If you aren't then enjoy anyway. Note: ^ means that the number after this symbol is the exponent. STEP 1. ax^2+bx+c=0
STEP 2. ax^2+bx+c=0/a
now you have this: x^2+b/ax+c/a=0
STEP 3. x^2+b/ax=-c/a
STEP 4. x^2+bx/a+b^2/(4a^2)=b^2/4a^2-c/a
STEP 5. x+b/2a=+or- sqrt b^2/4a^2-c/a
STEP 6. x+b/2a=+or- sqrt b^2/4a^2-4ac/4a^2
STEP 7. x+b/2a=+or- sqrt b^2-4ac/2a
STEP 8. x=-b/2a+or- sqrt b^2-4ac/2a
STEP 9. x=-b+or- sqrt b^2-4ac/2a
And that my friends is the step by step answer.
Don't ask me how I got what I got, because I got the
answer from my sister.
This page was created by your cheating buddy,
Derek
YOU'RE WELCOME!
Send E-Mail to: complete the square@webspawner.com
Copyright © 2007 Derek. All Rights Reserved