The indicated function y₁(x) is a solution of the given differential equation. x²y" - 5xy' + 9y = 0; Y1 x³ Use reduction of order or formula (5) in Section 4.2, as instructed. Find the integrating factor. e-SP(x) dx Y2 Y₂₁(x)] Y₂ = y₁(x) = = e -SP(x) dx Find a second solution y₂(x). y ²₁ (x) dx = X (5)