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Solve the Cubic Equation Using Factoring and the Quadratic Formula x3+8=0x ^ { 3 } + 8 = 0

Question 54

Multiple Choice

Solve the cubic equation using factoring and the quadratic formula.
- x3+8=0x ^ { 3 } + 8 = 0


A) {−2,−1±5}\{ - 2 , - 1 \pm \sqrt { 5 } \}
B) {−2,1±i3}\{ - 2,1 \pm \mathrm { i } \sqrt { 3 } \}
C) {−2,±2i}\{ - 2 , \pm 2 \mathrm { i } \}
D) {−2,1±i6}\{ - 2,1 \pm i \sqrt { 6 } \}

Correct Answer:

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