(3x⁶ - 7y²)*(3x⁶ + 7y²) = (3x⁶)² - (7y²)² = 9x¹² - 49y⁴
(3x6−7y2)⋅(3x6+7y2)=9x12+21x6y2-21y2x6-49y4=9x12-49y4
(3x⁶ - 7y²)*(3x⁶ + 7y²) = (3x⁶)² - (7y²)² = 9x¹² - 49y⁴
(3x6−7y2)⋅(3x6+7y2)=9x12+21x6y2-21y2x6-49y4=9x12-49y4