Question

помогите пожалуйста. срочно​

Answer 1

№25

а) $2a^{2}b^{2} -6ab^{2} +2a^{2}b=2ab(ab-3b+a)$

б) $12xy^{2}z^{2} - 8x^{2}yz^{2} - 2x^{2}y^{2} z=2xyz(6yz-4xz-xy)$

№29

а) $(x+1)+x(x+1)=(1+x)(x+1)=(x+1)^{2}$

б) $m^{2} (n+1)+2m(n+1)=(n+1)(m^{2} +2m)=m(n+1)(m+2)$

в) $y(a-y)-y^{2} (a-y)=(a-y)(y-y^{2} )=y(a-y)(1-y)$

г) $a(a-1)-1(a-1)=(a-1)(a-1)=(a-1)^{2}$