Step-by-step explanation:
[tex]( {w}^{2} - 6w {)}^{2} - 2( {w}^{2} - 6w) - 35 = 0 \\ = {w}^{4} - 6 {w}^{2} - 2 {w}^{2} - 12w = 35 \\ = {w}^{4} - 4 {w}^{2} - 12w = 35[/tex]
