1) 5a^2 - 30ab + 45b^2 = 5(a^2 - 6ab + 9b^2) = 5(a - 3b)^2Множники: 5, (a - 3b), (a - 3b)
2) 7x^2z^2 - 28z^2t^2 = 7z^2(x^2 - 4t^2) = 7z^2(x + 2t)(x - 2t)Множники: 7z^2, (x + 2t), (x - 2t)
1) 5a^2 - 30ab + 45b^2 = 5(a^2 - 6ab + 9b^2) = 5(a - 3b)^2
Множники: 5, (a - 3b), (a - 3b)
2) 7x^2z^2 - 28z^2t^2 = 7z^2(x^2 - 4t^2) = 7z^2(x + 2t)(x - 2t)
Множники: 7z^2, (x + 2t), (x - 2t)