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Polli200p
@Polli200p
July 2022
2
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Выполните действия/ квадрат суммы. квадрат разности
1. (2а + 1)^2
2. (c - 4p)^2
3. (b + 7)(b - 7)
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anika66682
1. (2а+1)^2=4а^2+4а+1
2. (с-4р)^2=с^2-8ср+16р^2
3. (b+7)(b-7)=b^2-49
1 votes
Thanks 1
kkkkkyterye
1.(2а+1)²;
(2а)²+2*2а*1+1²;
4а²+4а+1.
2.(с-4р)²;
с²-2с*+4p+(4p)²;
c²-8cp+16p.
3.(b+7)(b-7);
b²-7²;
b²-49.
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Answers & Comments
2. (с-4р)^2=с^2-8ср+16р^2
3. (b+7)(b-7)=b^2-49
(2а)²+2*2а*1+1²;
4а²+4а+1.
2.(с-4р)²;
с²-2с*+4p+(4p)²;
c²-8cp+16p.
3.(b+7)(b-7);
b²-7²;
b²-49.