(6a^2+5x)^2=36a^10+60a^5+25x^2
(10m^5+6m^2n^3)^2=100m^10+120m^7n^3+36m^4n^6
(x-4)(x+5)=0
x=4
x=-5
x+5 - + +
x-4 - - +
(x-4)(x+5) + - +
--------------o-----------o---------->x
-5 4
Ответ: х∈(-5;4)
M+2n=2,m=3n-3, 3n-3+2n=2,n-3=2,n=5
2х²+4ху + 2у² = 2(х²+2ху + у²)=2(x+y)²
3а² - 6а + 3 =3(а² - 2а + 1)= 3(a+1)²
2ху² + 4 ху + 2х =2x(y²+2y+1)=2x(y+1)²
6х² -12ху + 6у² =6(х² -2ху + у²)=6(x-y)²
5m²+10m + 5 =5(m²+2m+1)=5(m+1)²
3а - 6аb + 3аb² = 3a(1-2b+b²)=3a(1-b)²