ccaravello1337 ccaravello1337
  • 21-10-2019
  • Mathematics
contestada

Solve the equation, and check the solutions ∛(5x-3) +8=6.

Respuesta :

joaobezerra joaobezerra
  • 23-10-2019

Answer:

The solution is [tex]x = -1[/tex]

Step-by-step explanation:

We have the following equation:

[tex]\sqrt[3]{5x-3} + 8 = 6[/tex]

We place everything with the root on one side, everything without on the other site of the equality. So:

[tex]\sqrt[3]{5x-3} = -2[/tex]

Elevating both sides to 3, we can isolate x

[tex]\sqrt[3]{5x-3}^{3} = (-2)^{3}[/tex]

[tex]5x-3 = -8[/tex]

[tex]5x = -5[/tex]

[tex]x = -1[/tex]

Checking

[tex]\sqrt[3]{5(-1) - 3)} + 8 = \sqrt[3]{-8} + 8 = -2 + 8 = 6[/tex]

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