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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The Answer of 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) $\{ 12,5 \}$

Make an Appropriate Substitution and Solve the Equation (x2+4x)2−17(x2+4x)=−60\left( x ^ { 2 } + 4 x \right) ^ { 2 } - 17 \left( x ^ { 2 } + 4 x \right) = - 60(x2+4x)2−17(x2+4x)=−60

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