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3 years ago

Explain how to solve the cube root equation 3 √ x − 1 + 2 = 0

Mathematics

1 answer:

Helen [10]3 years ago

5 0

Hello from MrBillDoesMath!

Answer:

x = -1/27

Discussion:

3 x^(1/3) -1 +2 = 0 =>

3 x^(1/3) +1 = 0 => (as -1 + 2 = 1).

3 x^(1/3) + 1 - 1 = 0 - 1 => Add -1 to both sides

3 x^(1/3) = -1 => (divide both sides by 3)

(3/3) x^(1/3) = -1/3 =>

x^(1/3) = -1/3 =>

x = (-1/3) ^3 =>

x = -1/27

Thank you,

MrB

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