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Find the real or imaginary solutions of the equation by factoring, x^3+64=0

User Abanoub
by
4.7k points

2 Answers

3 votes

Answer:
-4, 2+/-2iāˆš(3)

Explanation:


x_(1) = -4\\x_(2) = 2 + 2āˆš(3i)\\x_(3) = 2 - 2āˆš(3i) \\,

User Pooria Kaviani
by
5.3k points
1 vote

Answer:

x=-4

Explanation:

x^3+64=0

Subtract 64 from each side

x^3 +64 -64 = -64

x^3 = -64

Take the cube root of each side

(x^ 3)^1/3 = (-64) ^1/3

x = -4

User Sgnsajgon
by
5.0k points