а) 6−√36-√36−√3^2 = 6^2 - 26√3 + √3√3√3^2 = 36 - 12√3 + 3 = 39 - 12√3.
б) √5+√7√5+√7√5+√7^2 = √5√5√5^2 + 2√5√7 + √7√7√7^2 = 5 + 2√35 + 7 = 12 + 2√35.
в) 2√2−√82√2-√82√2−√8^2 = 2√22√22√2^2 - 22√2√8 + √8√8√8^2 = 82 - 4√16 + 8 = 16 - 8√16 + 8 = 24 - 84 + 8 = 24 - 32 + 8 = 0.
а) 6−√36-√36−√3^2 = 6^2 - 26√3 + √3√3√3^2 = 36 - 12√3 + 3 = 39 - 12√3.
б) √5+√7√5+√7√5+√7^2 = √5√5√5^2 + 2√5√7 + √7√7√7^2 = 5 + 2√35 + 7 = 12 + 2√35.
в) 2√2−√82√2-√82√2−√8^2 = 2√22√22√2^2 - 22√2√8 + √8√8√8^2 = 82 - 4√16 + 8 = 16 - 8√16 + 8 = 24 - 84 + 8 = 24 - 32 + 8 = 0.