Разложите на множители 64a-a3 X^3-10x2+25x Распишите Спасибо!)

64A - A^3 = A* ( 64 - A^2) = A * ( 8 - A) * ( 8 + A ) ===================================== X^3 - 10X^2 + 25X = X * ( X^2 - 10X + 25 ) ______________________________________ X^2 - 10X + 25  D = 100 - 4*25 = 0  X = 10 : 2 = 5  _______________________________________ X^3 - 10X^2 + 25X = X * ( X - 5) * ( X - 5 ) ========================================