- $\left({{{5}{x}{-}{2}{y}}}\right)\left({{{x}{+}{4}{y}}}\right)$
- $\left({{{5}{x}^{2}{+}{4}}}\right)\left({{{x}{-}{2}{y}}}\right)$
- $\left({{{x}{+}{2}{y}}}\right)\left({{{5}{x}{-}{4}}}\right)$
- $\left({{{5}{x}{-}{4}}}\right)\left({{{x}{-}{2}{y}}}\right)$