Solve the Cubic Equation Using Factoring and the Quadratic Formula $$\mathrm { x } ^ { 2 } = - 18$$

question 105

Multiple Choice

Solve the cubic equation using factoring and the quadratic formula.
- $$\mathrm { x } ^ { 2 } = - 18$$

• A) \(\pm 9 \mathrm { i } \sqrt { 2 }\)
• B) \(\pm 3 i \sqrt { 2 }\)
• C) \(\pm 3 \sqrt { 2 }\)
• D) \(\pm 9 \sqrt { 2 }\)

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