Algebra 2 stuff

[toadsdaki]

Ok, so many of you will prolly say this is all basic stuff, but im comfused...

SO i have: 2x^3-7x^2-19x+35 and I need to factor this.. I can't just square root everything.... im confuzzled

[raulperez]

dude that's not even a factorable polynomial.... you've made some error in coming up with it

[toadsdaki]

for real?! it's on my problem set, i got two of the same things with different numbers... super confused... teacher prolly say oops my bad kids, i messed up this problem day its due

[raulperez]

it cannot be reduced by any means, including a calculator that does symbolic calculus... if he says it can be done, fight the man

ordinarily with these you use something called synthetic divison, but for this specific one it doesn't work

[farnagain]

2x^3-7x^2-19x+35

x(2x^2 - 7x - 19) = -35

wtf o-o

is it set equal to something?

[raulperez]

no this is just general polynomial factoring and even if it was set equal to something, you'd still have to maneuver it such that there was a zero on the right in order to get any answers

[toadsdaki]

nice, well... here's the same type of problem with different numbers, still dont get anywhere. I'll check with my teachers tomorrow, i will "fight" the man, even though my math teacher is a WOMAN

EDIT::::: Im an idiot i forgot to put in numbers =D

10x^3+10x^2+3x+3.... gotta factor it.... sooooo
x(10x^2+10x+3)=-3
i dunno, could this just be answer? like farn's as well, that all you can do to it? anyway i'll get back to it tomorrow

[raulperez]

if it's not initially set equal to something, you can't make an equation out of an expression

now this new problem is factorable... use basic FOIL factoring if you can see it, or synthetic divison, either will work

the result should be (x+1)(10x^2+3)

if you need an explanation of how synthetic division works, let me know and i'll draw it up on my tablet and post in this thread

[DarkSbhxx]

10x^3+10x^2+3x+3

isnt it
30x^2+20x+3=0

so that means

30x^2+20x=-3
x(30x+20)=-3

so x=0 or x= 1,5?

[ecstasy]

Last post: Oct 22, 2007 11:06 pm
But thank you for trying to help! You should introduce yourself in the correct forum. =D

[toadsdaki]

aha! but ecstasy he's new, plus he posted something that was (then) important to the topic. unlike calum who abused this.
just make sure to look at the dates in posts (in top right of a post) and make a guess on if this topic is dead or not

first post whats up!?!? http://www.tsugaming.com/forums/viewforum.php?f=344

[mmmcrak]

wow i hate math and im in an advance class 10th grade math lvl in 9 grade MATH SUX it pisses me off and it puts me to sleep lol

[farnagain]

dark, that's getting into derivatives and calculus.

[raulperez]

yeah stay away from derivatives, that'll just make him more confused