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shakhzodaradjab
@shakhzodaradjab
July 2022
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помогите пожалуйста. тема:формула разности квадратов.
1) 48×52; 2) 43×37;3)47×33;4)84×76.
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nafanya2014
Verified answer
1) 48×52=(50-2)(50+2)=50²-2²=2500-4=2496;
2) 43×37=(40+3)(40-3)=40²-3²=1600-9=1591;
3)47×33=(40+7)(40-7)=40²-7²=1600-49=1551;
4)84×76=(80+4)(80-4)=80²-4²=6400-16=6384.
2 votes
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shakhzodaradjab
остальные тоже сделайте пожалуйста
shakhzodaradjab
спасибо огромное
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Answers & Comments
Verified answer
1) 48×52=(50-2)(50+2)=50²-2²=2500-4=2496;2) 43×37=(40+3)(40-3)=40²-3²=1600-9=1591;
3)47×33=(40+7)(40-7)=40²-7²=1600-49=1551;
4)84×76=(80+4)(80-4)=80²-4²=6400-16=6384.