Please :1))преобразуйте в многочлен: 1)(p-2)^2+3p^2= 2)81x^2-(9x+7y)^2= 3)c(2c-1)^2= 4)-4p(p-2a)^2= 5)a(a-7)+(a+3)^2=

[latex] (p-2)^{2} +3p^{2} = p^{2} -4p+4+3p^{2}=4p^{2}-4p+4 [/latex] [latex]81x^{2}-81x^{2}-126xy-49y^{2}=-126xy-49y^{2}[/latex] [latex]c(4c^{2}-4c+1)=4c^{3}-4c^{2}+c[/latex] [latex]-4p(p^{2}-4ap+4a^{2})=-4p^{3}+16ap^{2}-16a^{2}p[/latex] [latex]a^{2}-7a+a^{2}+6a+9=2a^{2}-a+9[/latex]