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nikkimae
 3 years ago
how do you factor a polynomial ?
nikkimae
 3 years ago
how do you factor a polynomial ?

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inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1Depends. Do you have an example?

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1In short, one usually uses the rational roots theorem to determine possible rational roots. the theorem can give a long list of possible roots, but that list of complete for rational roots. After those are tested, one must use other methods.

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1Absolute factorization of a polynomial of degree 4 (quartic) or less is possible with the quartic, cubic, and quadratic pformulas.

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1@nikkimae , for this example, you want to factor out all common factors first. You can reduce the expression into: 4B(4B^3+2B+5)

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1Nex you need to factor the resulting expression. You can use the rational roots theorem for ideas here.

nikkimae
 3 years ago
Best ResponseYou've already chosen the best response.0then you just multiply right?

nikkimae
 3 years ago
Best ResponseYou've already chosen the best response.0what do you do after you have reduce the expression?

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1You are attempting to simply the expression into factors. YOu do not multiply after  the whole point of factoring is to "undo" the multiplying.

nikkimae
 3 years ago
Best ResponseYou've already chosen the best response.0ohhhh okay i got it thanks :)

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1okay  let me know if you need anymore help  note that that expression is not the final answer.

nikkimae
 3 years ago
Best ResponseYou've already chosen the best response.0okay one question how did you exactly reduce the expression ? i have exams and i need to know this stuff

inkyvoyd
 3 years ago
Best ResponseYou've already chosen the best response.1use this to simply what is inside the parenthesis, http://www.purplemath.com/modules/rtnlroot.htm
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