Упрости выражения. 1) x^2-x(2x+1)=x^2-x\cdot 2x-x\cdot 1= x^2 x. 2) 5y^3+y^2(2-y)= 4y^3 2y^2. 3) 4ab-a(2b-a)= 2ab a^2. 4) -3m^2(1-m)-2m^3= m^3\, + 3m^2.

Задание

Выбери верные ответы

Упрости выражения.

\(x^2-x(2x+1)=x^2-x\cdot 2x-x\cdot 1=\) [ \(+\) | \(-\) ] \(x^2 \) [ \(+\) | \(-\) ] \(x\) .
\(5y^3+y^2(2-y)=\) [ \(+\) | \(-\) ] \(4y^3 \) [ \(+\) | \(-\) ] \(2y^2\) .
\(4ab-a(2b-a)=\) [ \(+\) | \(-\) ] \(2ab\) [ \(+\) | \(-\) ] \(a^2\) .
\(-3m^2(1-m)-2m^3=\) [ \(+\) | \(-\) ] \(m^3\, + \) [ \(+\) | \(-\) ] \(3m^2\) .