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

Question 220

Multiple Choice

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


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

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