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Raitekk
@Raitekk
July 2022
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(√7-√12)*(√7-3√3)
Помогите :)
И ещё
(3√5+2√10) в квадрате
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Roxx0
1) 7-(√27*√7)-(√12*√7)+(√12*√27) = 7 - √189 - √84 + 18 = 25 - 3√21 - 2√21 = 25 - 5
√21
2) 45 + 12
√50 + 40 = 95 +60
√2
3 votes
Thanks 3
Raitekk
Откуда ты взял 12√50?
Roxx0
ну так (a+b)^2 = a^2 + 2ab +b^2 =>3*2*2*√10*√5 = 3*4*√50 = 12V50
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Answers & Comments
2) 45 + 12√50 + 40 = 95 +60√2