Алгебра. 7 класс. 20 баллов.
1. 2a^2b^3*8(ab^2)^2*5a^3=
2. 7^4*(7-8)^3
_________ =
8^2*7^7
1. 2a^2b^3*8(ab^2)^2*5a^3=
2. 7^4*(7-8)^3
_________ =
8^2*7^7
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Answers & Comments
1. ＝ 2*8*5 * a²*a²*a³ * b³*b^4 ＝80*a^7*b^7
2. ＝ (-1)³ / (8²*7³) ＝ - 1/21952