Writing polynomials given the zeroes

Writing a polynomial function given the roots of the equations -with an emphasis on checking your work.
These video are designed for the Albemarle High School Math, Engineering and Science Academy, and may include references to homework or other. MESA AHS

Category:

Education

Tags:

• Polynomial
• function
• AHS
• MESA

[AirsoftSeattleReveiw]

@governergusgus the -9 seems to be a mistake. Because when he wrote -(-4) he confused himself. Really, that should have been written as (x-5)(x+4)(x-1) in which case you would get x^2 -x - 20 (x-1)..not x^2-9x+20..He just forgot that it was -(-4) instead of -(4). Hope that clears things up!

[greenmonkes130]

omg thank you soo much . you explain way better than my teacher <3

[IllSpeakNow]

five minutes taught me better than six months of instruction. Praise the lawd, thank you muchly.

[TheKittyRocker]

Helps a ton.. my alg2 spends 2 houelrs just to explain this

[DreiHundertftw]

OH YEAH, my exact same problem. WOooo!!!

[governergusgus]

wait, where does the -9 come from x squared -9X + 20?? you say straight multiplication, but nothing there multiplies to 9....5 and 4 add to 9, its that where it comes from???