Solve the following equation by making an appropriate substitution.(x + 5) +9(x+5) +18=0Make an appropriate substitution and rewrite the equation in quadratic form.Let u= x

Solve the following equation by making an appropriate substitution.(x + 5)² +9(x+5) +18=0Make an appropriate substitution and rewrite the equation in quadratic form.Let u= x +5, then the quadratic equation in u is u² +9u+18=0.Solve the equation. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.A. The solution set is(Simplify your answer. Use a comma to separate answers as needed.)B. The solution set is the empty set.