aileenmcdaid20ovd0py aileenmcdaid20ovd0py
  • 27-08-2017
  • Mathematics
contestada

I've got two of these kinds of problems and no clue how to do them, help please!

Ive got two of these kinds of problems and no clue how to do them help please class=

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caylus
caylus caylus
  • 27-08-2017
Hello,

[tex]3x^3+2x^2-3x-2=0\\ 3x^3-3x+2x^2-2=0\\ 3x(x^2-1)+2(x^2-1)=0\\ (x^2-1)(3x+2)=0\\ (x-1)(x+1)(3x+2)=0\\ Sol=\{- \dfrac{2}{3}, -1,1 \} [/tex]
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arlette12 arlette12
  • 27-08-2017
Doesn't X equal 0 because anything times 0 equals 0
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