Trinomials in 60 Seconds, Part 2

[numbers4and0]

why cant you be my math teacher? I would get straight 100s in that class unlike now.

[supreet7188]

Ur awsomeeeeeee!!!!!!!!!!!!!!!

[XxblackxmaidenxX]

thanks!!!!!!!!

[123dool]

Thanks for refreshing the old memory!

[eclipse245]

No this won't work many time. Because sometimes you will need to find the GCF

[ELkORji]

WOw.. Great... Thx. .. but does this work everytime??

[xGamerGuy]

my teacher tried to teach this all week... i just now learned it.lol....thanx

[rpage09]

great...thanks so much

[alereed2]

thanks!.. very useful

[megnut12]

Thank you! :)

[kdavid4]

thank dude everyone one else makes it seem so f'en hard

[Treachrocc]

Thanx Man i diddnt know what the hell my professor was talking about, its too easy he had to make it super hard

[omarsomar]

factoring now is a whole lot better. my math teacher makes it so impossible its actualy not that boring

[joepwnurass]

i would be thankful if i was in high school

good video

[redlined21]

thanks

[MathCrazyTutoring]

You guys are absolutely right. There's sooo many ways to do trinomials, that I just picked what I liked. Thanks for posting up alternate methods arternissimetrA.

[ipunkbali]

thank you!!

[ArtemissimetrA]

Instead of teaching this way, I found a way that's a lot easier.

2x^2-x-15 [Find what multiplies into (-15 X 2 = -30) and adds to (-1). Here you find -6, 5]

Substitute the 2 numbers into the equation and group factor.

(2x^2 - 6x)(5x-15)

2x(x-3)+5(x-3)

Now that both bracketed items are the same, you can be sure that your answer is correct. Take the unbracketed items and rearrange the equation so they are together.

(2x+5)(x-3)

[crimsonskater]

yeah i learned it that way too

[mephatboi]

yea but how do u know where -6 and 5 goes (w/ the 2x & x or x & 2x)???

[mephatboi]

it doesnt matter! ha!