anonymous
  • anonymous
2 times the cubed root of 7b-1 equals 4
Precalculus
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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Jack1
  • Jack1
\[2\times \sqrt[3]{(7b-1)} = 4\]
Jack1
  • Jack1
this??
Jack1
  • Jack1
@randomguy111

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anonymous
  • anonymous
yep!
Jack1
  • Jack1
k, assuming it it... just remember to always balance the 2 sides of your equation so LHS /2 = RHS /2 2 x cubed root of (7b-1) = 4 2 x cubed root of (7b-1) /2 = 4 /2 cubed root of (7b-1) = 2 now cube both sides (^3), so cubed root of (7b-1) = 2 cubed root of (7b-1) ^3 = 2 ^3 (7b-1) = 8 can u take it from here?
anonymous
  • anonymous
So b would equal 9/7 ?
Jack1
  • Jack1
that what i got, yep
anonymous
  • anonymous
Awesome! Thank you so much! Hey I might need more of your help lol
Jack1
  • Jack1
sure, just gonna finish helping constance first
anonymous
  • anonymous
Okay just let me know :)

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