tolong dibantu yaaa makasi hehe

[tex] {x}^{3} - 6 {x}^{2} - 3 {x}^{2} + 18x = \\ \frac{1}{4} {x}^{4} - 3{x}^{3} + 9 {x}^{2} + c = \frac{1}{4} ( {x}^{4} - 12 {x}^{3} + 36 {x}^{2} ) + c[/tex]