1ВАРИАНТ :1. а. m^2+10m+25
б. 4+2/4x+1/64x^2
в.36m^2+60mn+25n^2
2. a. (b+3)^2
б. (2x+9y)^2
в.(5x+1)^2
3.а.16x^2+9
4.а. 6ab
б. 16а;9b
2 ВАРИАНТ:
1. а. x^2+14x+49
б.9+2/3y+1/81y^2
в. 4x^2+4xy+y^2
2. а. (a+4)^2
б.(3x+4y)^2
в. (10x+1)^2
3. а. 9a^2+25
4. 8xy
б. 81a^2;4b^2