anonymous
  • anonymous
factor the expression 3x^3 + 3x^2 + x + 1
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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ajprincess
  • ajprincess
can u factorise 3x^3 + 3x^2?
anonymous
  • anonymous
so do 3 x 3 x 3 =27 3 x 2 = 9 and add them together? 36?
ajprincess
  • ajprincess
nope. 3x^3 =3*x*x*x 3x^2=3*x*x

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anonymous
  • anonymous
so 81 and 27? add them?
ajprincess
  • ajprincess
3x^3=3*x*x*x=3x^2*x 3x^2=1*3x^2 so vat is common to both 3x^3 and 3x^2?
anonymous
  • anonymous
x?
ajprincess
  • ajprincess
3x^2
ajprincess
  • ajprincess
|dw:1370277435289:dw|
ajprincess
  • ajprincess
is that clear?
anonymous
  • anonymous
ok what do you do after that?
anonymous
  • anonymous
no but 1 of the answers is 3x^2(x + 1) where did the x + 1 come from?
ajprincess
  • ajprincess
when u take out 3x^2 from 3x^3 what remains is x. similarly when u take out 3x^2 from 3x^2 what remains is 1.|dw:1370278054591:dw|
anonymous
  • anonymous
Oh that kinda looks familiar the way you wrote that but like i said i've never done any type of algebra so this is all new
ajprincess
  • ajprincess
hmm i c.
ajprincess
  • ajprincess
i think learning about highest common factor will come in handy here
anonymous
  • anonymous
ill google the def.
ajprincess
  • ajprincess
any ideas about prime factors?

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