anonymous
  • anonymous
Factor completely 9x^6-54x^5+18x^4 the complete factorization is????
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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amistre64
  • amistre64
take out commons; x^4 seems the most commmon
amistre64
  • amistre64
9 also goes into it all
amistre64
  • amistre64
9x^4 (x^2 -6x +2)

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amistre64
  • amistre64
the rest might me tricky in that i think we get sqrts involved
amistre64
  • amistre64
3 +- sqrt(28)/2 ad that aint gona be pretty
amistre64
  • amistre64
3 +- sqrt(7) its either what I first did or it will ome to this: 9x^4(x -(3-sqrt(7)))(x-(3+sqrt(7))) if I kept track of it
anonymous
  • anonymous
9x^4 (x^2 -6x +2) this is your first answer right?
anonymous
  • anonymous
you have a few things going on so wasnt sure if that was the answer
anonymous
  • anonymous
You are correct (except you left out x=0 as one of the solutions. the remaining x^2-6x+2 factors out to 3 + sqrt(7) and 3-sqrt(7) Use the pythagorean theorem to get the above answers. ax^2+bx+c=0 so a=1, b=-6, and c = 2; just plug those into the theorem to get 3 + sqrt(7) and 3-sqrt(7)

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