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kotykmax [81]
3 years ago
14

8-(x+9)^3=520 Solve using cube root. Please show work!!

Mathematics
1 answer:
andrew-mc [135]3 years ago
6 0

Answer:

8 -( x + 9)^{3}  = 520 \\  \\  -  {(x + 9)}^{3} = 520  - 8 \\ \\    - (x + 9) ^{3}   = 512 \\ \\   -  {(x + 9)}^{3 \times  \frac{1}{3} }  =  \sqrt[3]{512}  \\  \\   - (x + 9) =  \sqrt[3]{512}  \\  \\  - x - 9 = 8 \\  \\  - x = 8 + 9 \\  \\  - x = 17 \\  \\ x =  - 17

I hope I helped you^_^

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