Make an Appropriate Substitution and Solve the Equation $$\left( x ^ { 2 } + 4 x \right) ^ { 2 } - 17 \left( x ^ { 2 } + 4 x \right) = - 60$$

question 222

Multiple Choice

Make an appropriate substitution and solve the equation.
- $$\left( x ^ { 2 } + 4 x \right) ^ { 2 } - 17 \left( x ^ { 2 } + 4 x \right) = - 60$$

• A) \(\{ - 1 , - 2,6,5 \}\)
• B) \(\{ - 5 , - 12 \}\)
• C) \(\{ - 5 , - 6,2,1 \}\)
• D) \(\{ 12,5 \}\)

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