Seven is the only quantity D for which the equation 2n − D = x2 has greater than two remedies for n and x purely natural. Specifically, the equation 2n − seven = x2 is called the Ramanujan–Nagell equation. two several hours back By Mashable Workforce A MacBook Professional for https://non-slipslippersforelderl11974.anchor-blog.com/18159128/how-much-you-need-to-expect-you-ll-pay-for-a-good-7-day-pill-organizers