👤

a)restringeti :
25x²-10x+1
0,25x²+x+1
x³-6x+12x-8
x³-6x²+12x-8
b)descompuneti in factori polinomul:
0,64x²-1
5x²-45
125x³-64
729x³+1




Răspuns :

25x²-10x+1=(5x+1)²
0,25x²+x+1=(²0,5x+1)
x³-6x+12x-8 =x³+6x-8 
x³-6x²+12x-8
=(x-2)³
b)descompuneti in factori polinomul:
0,64x²-1 = (0,8x+1)(0,8-1)
5x²-45 =(x√5+3√5)
(x√5-3√5)
125x³-64 = (5x-4)(25x²+20x+16)
729x³+1
=(9x+1)(81x²+9x+1)