actofvalor228 actofvalor228

19-07-2018
Mathematics

contestada

solve: ^3 square root x²-8=2

a. x=-4
b. x=4
c. x=-4 or x=4
d. no real solution

Respuesta :

altavistard altavistard

19-07-2018

"^3 square root " is ambiguous and inappropriate. Did you mean "cube root of x^2 - 8"?

If so, then your equation is

cube root of (x^2-8) = 2.

Taking the cube of both sides, we get x^2-8 = 8, or x^2 = 16. Thus,

x = plus or minus 4.

Answer Link

Kyizack3 Kyizack3

05-02-2020

Answer:

C. x = –4 or x = 4

Answer Link

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