Respuesta :

(3x+7y)(3x-7y)
9x2-21xy+21xy-49y2
9x2-48y2
Ktee10
Hi. Find the product of (3x + 7y)(3x − 7y). 9x² - 21xy + 21xy - 49y². 9x² - 49y². The answer is : 9x² -49y².