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ìYatoí
@ìYatoí
July 2022
1
1
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Преобразуйте выражение:
1. (2-3у)²;
2. (4-5а)(5а+4);
3. (а-5)²;
4. (b+2)(b-2);
5. (7x²-6y)(7x²+6y).
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Answers & Comments
93931
1.
(2-3у)² =
4-12y+9y².
2.
(4-5а)(5а+4) =
16-25a².
3.
(а-5)² =
a²-10a+25.
4.
(b+2)(b-2) =
b²-4.
5.
(7x²-6y)(7x²+6y) =
49x
⁴-36y².
2 votes
Thanks 1
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Answers & Comments
2. (4-5а)(5а+4) = 16-25a².
3. (а-5)² = a²-10a+25.
4. (b+2)(b-2) = b²-4.
5. (7x²-6y)(7x²+6y) = 49x⁴-36y².