(5² - 0,275²)/5,275 = (5 - 0,275)·(5 + 0,275)/5,275 = 4,725·5,275 /5,275 = 4,725
(5^2-0,275^2)/5,275=(5+0,275)(5-0,275)/5,275=4,725
(5² - 0,275²)/5,275 = (5 - 0,275)·(5 + 0,275)/5,275 = 4,725·5,275 /5,275 = 4,725
(5^2-0,275^2)/5,275=(5+0,275)(5-0,275)/5,275=4,725