Ответ:
- \((c+5)^2=c^2+10c+25\).
- \((8-h)^2=64-16h+h^2=h^2-16h+64\).
- \((2x+y)^2=4x^2+4xy+y^2\).
- \((3a-b)^2=9a^2-6ab+b^2\).
- \((5p-6q)^2+60pq=25p^2-60pq+36q^2+60pq=25p^2+36q^2\).
- \((x-y)(x+y)=x^2-y^2\).
- \((3a-4b)(3a+4b)=9a^2-16b^2\).
- \((0.5x^2+0.6y)(0.5x^2-0.6y)=0.25x^4-0.36y^2\).
Ответ: А) \(c^2+10c+25\); Б) \(h^2-16h+64\); В) \(4x^2+4xy+y^2\); Г) \(9a^2-6ab+b^2\); Д) \(25p^2+36q^2\); Е) \(x^2-y^2\); Ж) \(9a^2-16b^2\); З) \(0.25x^4-0.36y^2\).
