*-24m^5n+36n²=(2m^5-6n)², *=4m^10.
a^4-0,6a^5+*=(a²-0,3a³)²=a^4-0,6a^5+0,09a^6. *=0,09a^6.
*-xy+1/49y²=(7/2x-1/7y)²=49/4x²-2·7/2·x·1/7·y+1/49y². *=49/4·x²
*-24m^5n+36n²=(2m^5-6n)², *=4m^10.
a^4-0,6a^5+*=(a²-0,3a³)²=a^4-0,6a^5+0,09a^6. *=0,09a^6.
*-xy+1/49y²=(7/2x-1/7y)²=49/4x²-2·7/2·x·1/7·y+1/49y². *=49/4·x²