( 2x²y – ( x²y )² ( 1/x³y ))² =
( 2x²y – 4x⁴y² . 1/x³y )² =
( 2x²y – 4xy² . 1/y )² =
( 2x²y – 4xy )² =
4x⁴y² – 16x³ y² + 16x² y²
☆
|| ASS: Blues / 02|09|21 / às 07:27
