разложите на множители
3(t+2)-t(t+2)
ab(b-3)+a^2(b-3)
c(c-d)+d(d-c)
k(m-3n)-p(3n-m)
5(y+3)-a(y+3)-a(y+3)-x(y+3)
2(x-4)+c(4-x)-a(x-4)
^-степень

3(t + 2) - t(t + 2) = (t + 2)(3 - t) ab(b - 3) + a²(b - 3) = (b - 3)(ab + a²) = a(b - 3)(b + a)c(c - d) + d(d - c) = c(c - d) + d(-c + d) = c(c - d) - d(c - d) = (c - d) (c - d) k(m - 3n) - p(3n - m) = k(m - 3n) - p(-m + 3n) = k(m - 3n) + p(m - 3n) =  = (m - 3n)(k + p) 5(y + 3) - a(y + 3) - a(y + 3) - x(y + 3) = (y + 3)(5 - a - a - x) =  = (y + 3)(5 - 2a - x)2(x - 4) + c(4 - x) - a(x - 4) = 2(x - 4) + c(-x + 4) - a(x - 4) = = 2(x - 4) - c(x - 4) - a(x - 4) = (x - 4)(2 - c - a)