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Mathematics 17 Online
OpenStudy (anonymous):

ac method step by step plz 3x³-5x²-2x

OpenStudy (anonymous):

still don't get help?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

x^3 you need made x^2 for easy facteor

OpenStudy (anonymous):

first GCF = x

OpenStudy (anonymous):

after put GCF out side you have

OpenStudy (anonymous):

\[x(3x^{2}-5x-2)\]

OpenStudy (anonymous):

factor; x(x-2)(3x+1)

OpenStudy (anonymous):

very hard hard to explain,you may watch web site, www.youtube.com more easy understand

OpenStudy (anonymous):

3x^3 you bring out side x now you have 3x^2 5x^2 you bring out side x now you have 5x 2x you bring out side x now you have 2

OpenStudy (anonymous):

ok can u do 8x²-16-28x

OpenStudy (anonymous):

this is decimal you have to use quadratic equation form can't not factor (-b ∓√(b^2-4*a*c))/2a

OpenStudy (anonymous):

did you do this before?

OpenStudy (anonymous):

a=8 b=-16 c=-28

OpenStudy (anonymous):

(-(-16) ∓√(-16)^2)-(4*8*(-16))/2(8)

OpenStudy (anonymous):

i have to explain it step by step to another student using the ac method

OpenStudy (anonymous):

I only know this way

OpenStudy (anonymous):

you may repost to see some one know how to do using the ac method

OpenStudy (anonymous):

Ok. I have to go now bye

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