8√3-5√12+4√75=8√3-5√3*√4+4√25*√3=8√3-10√3+20√3=18√3
(а-2√3а+3)/(а-3)=(√а-√3)²/(а-3)=(√а-√3)²/(√а-√3)(√а+√3)=(√а-√3)/(√а+√3)
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8√3-5√12+4√75=8√3-5√3*√4+4√25*√3=8√3-10√3+20√3=18√3
(а-2√3а+3)/(а-3)=(√а-√3)²/(а-3)=(√а-√3)²/(√а-√3)(√а+√3)=(√а-√3)/(√а+√3)