anonymous
  • anonymous
factor the expression 3 2x + 54 = 0 (the x is cubed)
Mathematics
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SOLVED
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chestercat
  • chestercat
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amistre64
  • amistre64
Factor 2x^3 +54 =0. x^3 = -54/2 x^3 = -27 cbrt(x^3) = cbrt(-27) x*x*x = (-3)*(-3)*(-3) x= -3 Double check: 2(-27) +54 = 0 -54 + 54 = 0 0=0 (its all good)
anonymous
  • anonymous
ok yeah that makes sense thank you !!
anonymous
  • anonymous
so then 2x 3 - 250 = 0 is same x 3 = 250/2 which is 125 x 3 = 125 so x = 5

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amistre64
  • amistre64
Yes, exactly :)
anonymous
  • anonymous
ok thank you so much then

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