Задание

Заполни пропуски

Разложи на множители:

а) \((m-3n)(2m+5n)-(3n-m)(m+4)=(m−3n)(2m+5n)\) [ \(-\) | \(+\) ] \((\) [ ] \() \cdot (m+4)=(\) [ ] \() \cdot (2m+5n+m+4)=(\) [ ] \() \cdot (3m + 5n + 4)\) ;

б) \((4b-y)(3b+2y)+(b-6y)(y-4b)=(4b − y)(3b + 2y)\) [ \(-\) | \(+\) ] \((b − 6y) \cdot (\) [ ] \()=(\) [ ] \() \cdot (3b + 2y\) [ \(-\) | \(+\) ] \(b\) [ \(-\) | \(+\) ] \(6y)=(\) [ ] \() \cdot (\) [ ] \()\) .