July 2022 1 6 Report
Упростите выражение и найдите его значение:
а) 2(a+b) - b(2a - b) - b(b + 1); b= -0,4, a= -0,3,
б) 3u(u^2 - 3u - 7) - 2u(u^2 - 13u + 5)
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