MCQ
The factorisation of $(\frac{{\text{x}^2}}{{\text{y}}^2}-2+\frac{{\text{y}^2}}{{\text{x}^2}})\text{x}\not=0$ is:
- A$(\frac{\text{x}}{\text{y}}+\frac{\text{y}}{\text{x}})^2$
- ✓$(\frac{\text{x}}{\text{y}}-\frac{\text{y}}{\text{x}})^2$
- C$(\frac{\text{x}}{\text{y}}-1)^2$
- D$(\frac{\text{x}}{\text{y}}+1)^2$