twentyfourseven1 twentyfourseven1

15-08-2018
Mathematics

contestada

Solve for all roots of the equation. Show all work for full credit.
x^3 + 216 = 0

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Pitymys Pitymys

15-08-2018

Given the equation [tex] x^3+216=0 [/tex]. The equation can be written as

[tex] x^3=-216\\
x^3=(-6)^3 [/tex]

Now take the cube root on both sides.

[tex] x=((-6)^3)^{1/3}\\
x=-6 [/tex]

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