Упростите выражение:
а) 5(a+2)+(a–2)=
б) 2x(x+1)–4x(2–x)=
в) x(x²+x)–(x²+x+1)=
г) 2y²(6y–1)+3y(y–4y²)=
а) 5(a+2)+(a–2)=
б) 2x(x+1)–4x(2–x)=
в) x(x²+x)–(x²+x+1)=
г) 2y²(6y–1)+3y(y–4y²)=
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Answers & Comments
2)6х(х-1)
3)х сверху 3 - х -1
4)5у сверху 2 -6у+1-4у сверху 3