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Solve the Cubic Equation Using Factoring and the Quadratic Formula x3+64=0x ^ { 3 } + 64 = 0

Question 338

Multiple Choice

Solve the cubic equation using factoring and the quadratic formula.
- x3+64=0x ^ { 3 } + 64 = 0


A) {−4,2±2i3}\{ - 4,2 \pm 2 \mathrm { i } \sqrt { 3 } \}

B) {−4,−2±2i6}\{ - 4 , - 2 \pm 2 \mathrm { i } \sqrt { 6 } \}

C) {−4,2±2i5}\{ - 4,2 \pm 2 \mathrm { i } \sqrt { 5 } \}

D) {−4,−2±2i}\{ - 4 , - 2 \pm 2 i \}

Correct Answer:

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