aileenmcdaid20ovd0py aileenmcdaid20ovd0py

27-08-2017
Mathematics

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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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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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