Question

determine o produto
(xy2-z2) (xy2+z2)

Answer 1

xy⁴ + xy²z² - xy²z² - z⁴
xy⁴ - z⁴

Answer 2

$(x {y}^{2} - {z}^{2} ).(x {y}^{2} + {z}^{2} ) = (x {y}^{2})^{2} - ( {z}^{2})^{2} = {x}^{2} {y}^{4} - {z}^{4}$