Solve the Equation by Using Substitution $$3 \left( t ^ { 2 } - 9 \right) ^ { 2 } + 16 \left( t ^ { 2 } - 9 \right) = - 5$$

question 276

Multiple Choice

Solve the equation by using substitution.
- $$3 \left( t ^ { 2 } - 9 \right) ^ { 2 } + 16 \left( t ^ { 2 } - 9 \right) = - 5$$

• A) \(\left\{ \pm \frac { \sqrt { 78 } } { 3 } , \pm 2 \right\}\)
• B) \(\left\{ \pm \frac { \sqrt { 78 } } { 3 } i , \pm i 2 \right\}\)
• C) \(\left\{ - \frac { 1 } { 3 } , - 5 \right\}\)
• D) \(\left\{ \pm \frac { 1 } { 3 } , \pm 5 \right\}\)

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