Rozłóż wyrażenia na czynniki:
a) x²-16=
b)a²-3a³+1/9a²
c)x²+18x+81=
d)a²+6a+9-b²=
a) x²-16=(x+4)(x-4)
b)a²-3a³+1/9a²=-3a³+1 1/9a²=-a²(3a-1 1/9)
c)x²+18x+81=(x+9)(x+9)
d)a²+6a+9-b²=(a+3)(a+3)-b·b
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a) x²-16=(x+4)(x-4)
b)a²-3a³+1/9a²=-3a³+1 1/9a²=-a²(3a-1 1/9)
c)x²+18x+81=(x+9)(x+9)
d)a²+6a+9-b²=(a+3)(a+3)-b·b