Упростите:
а) √24-4√6+√54
б)2√5-√45+√80
в)5√3-√300-√27
г)2√3·(2-5√12)-4√3
а) √24-4√6+√54
б)2√5-√45+√80
в)5√3-√300-√27
г)2√3·(2-5√12)-4√3
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а) √24-4√6+√54=√4*6-4√6+√9*6=2√6-4√6+3√6=√6б)2√5-√45+√80=2√5-√9*5+√16*5=2√5-3√5+4√5=3√5
в)5√3-√300-√27=5√3-√100*3-√9*3=5√3-10√3-3√3=-8√3
г)2√3·(2-5√12)-4√3=2√3*(2-5√4*3)-4√3=2√3*(2-5*2√3)-4√3=4√3-20*3-4√3=-60