Question

help pleaseeee?

Answer 1

With?

Answer 2

can the factoring by grouping procedure be performend on a trinomal? why? or why not?

Answer 3

What grade are you in?

Answer 4

college

Answer 5

Lol that's why I don't understand.

Answer 6

dang im lost :(

Answer 7

Ok we'll you know how to factor right?

Answer 8

And is it an essay?

Answer 9

no is just a question on one of my worksheets

Answer 10

You don't know how to factor? Wait nvm that's not the question. Yes it can

Answer 11

i know to factor. it says why or why not? thats what i cant explain

Answer 12

Because the method is more accurate in getting the factors for the problem, educated guess not one hundred percent sure though. Sorry

Answer 13

yes you can factor by grouping on a trinomial, but it depends on the case.

for example with the equation y=x^3+x^2+3x+3
you can take the first and second term, and pull out a common x^2
in the third and fourth terms, you can pull out a common 3.
re writing it this way would yield y=(x+1)x^2 + 3(x+1)

now notice you have a common (x+1) in both parts. this allows you to factor the equation by grouping. the equation would then reduce to:
y=(x+1)(x^2+3)

Answer 14

i got a different question @LifeEngineer

Answer 15

do elaborate?

Answer 16

how do you determine whether a trinomial is prime ?

Answer 17

@LifeEngineer

Answer 18

I can't say I ever learned a definite way of determining whether or not a polynomial is prime. All I can tell you is that you should try factoring by grouping, or see if if you can pull out any common factors from all the terms, or even if the trinomial satisfies the perfect square form. If none of those work, then there's a good chance its prime.
Otherwise if you happen to have a graphing calculator, or want to take the time to graph it, if the roots of the graph are whole/integer numbers, then the function isn't prime. But if any of the roots are a fractional number, then it's prime