Ask your own question, for FREE!
Mathematics 19 Online
OpenStudy (ineedhelp10):

Factoring help

OpenStudy (anonymous):

shoot

OpenStudy (ineedhelp10):

wait a sec please

OpenStudy (ineedhelp10):

2x^2+x-6

OpenStudy (anonymous):

(2x-3)(x+2)

OpenStudy (anonymous):

2x^2+4x-3x+6 2x(x+2)-3(x+2) (x+2)(2x-3)

OpenStudy (mathmale):

Mizzz: Looks good. But "ineedhelp10" would no doubt appreciate your guidance in regard to HOW you came up with those factors. MJB: Thanks for showing your steps. What's the name of this particular method of factoring?

OpenStudy (ineedhelp10):

@mjbmanny Where did you get the 2x(x+2) ?

OpenStudy (anonymous):

look we got, 2x^2+4x=2x*x+2x*2 now take 2x common 2x(x+2) got it?

OpenStudy (anonymous):

find the factors for 6 it may be 6 and 1 3 and 2 trial and error my method

OpenStudy (mathmale):

mjbmanny's method is known as "factoring by grouping," and he did a good job of demonstrating it.

OpenStudy (ineedhelp10):

I don't know where you got the 4x

OpenStudy (anonymous):

mathmale, i donnt know any name of it but the trick that works for small equations with three terms and single varibale is this; look for the term with middle degree, here the term with x in it and calculate the product of the coefficients of remaining two terms by trial and error, try to find the factors of the product that by addition or substraction make up the coffecient of the middle term. However, if the last term (the constant term) has a positive sign, the trick is to add the factors. But, if the last term has negative sign, then split the middle term by substracting two factors of the product mentioned before. Easier method of understanding; just split the middle term appropriately.

OpenStudy (anonymous):

above, i had x, and 6*2=12 as the product of two remaining terms' coefficients 12 factors as 4*3 with 4-3=1. so split x as 4x-3x. the benefit of this is that if u get it right in the begining, there will certainly be factors; because already u have multiplied the coffiecients, found their multiple,and splitted the x by using those multiples. it is called factoring by grouping allright.

OpenStudy (ineedhelp10):

I think you might of had conffused my problem

OpenStudy (ineedhelp10):

It was 2x^2+x-6

OpenStudy (anonymous):

well, no i don't think so. let me show it again;

OpenStudy (anonymous):

2x^2+x-6 split x as 4x-3x 2x^2+4x-3x-6 between 2x^2 adn 4x, 2x is common, between -3x and -6x, -3 is common so lets separate the commons 2x(x+2)-3(x+2) now lets again take (x+2) as common between these two terms, (x+2)(2x-3). got it?

OpenStudy (ineedhelp10):

Thank you so much:)

OpenStudy (anonymous):

you are welcome.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!