hasil dari √313² - 312² adalah..

√313^2 - 312^2
= 313 - 97.344
= 97.031

[tex]a {}^{2} - b {}^{2} = (a - b)(a + b)[/tex]
[tex] \sqrt{313 {}^{2} } + \sqrt{312 {}^{2} } = \sqrt{(313 - 312)(313 + 312)} = \sqrt{625} = 25[/tex]