(2x 2 y 2 – 5xy 2 ) × (x 2 – y 2 ) = 2x 2 y 2 (x 2 – y 2 ) – 5xy 2 (x 2 – y 2 ) = 2x 4 y 2 – 2x 2 y 4 – 5x 3 y 2 + 5xy 4

Multiply:

(2x²y² – 5xy²) × (x² – y²)

= 2x²y² (x² – y²) – 5xy² (x² – y²)

= 2x⁴y² – 2x²y⁴ – 5x³y² + 5xy⁴