Wyłącz wspólny czynnik przed nawias. a)7xy-21x b)ab2-a2c c)k2l-kl2 d)x3-2x2+x e)3ab2-2a2b-ab f)1/2ac2-1/4a2-ab
a) 7xy-21x = 7x(y-3)
b) ab2-a2c = a(b2-ac)
c) k2l-kl2 = kl(k-l)
d) x3-2x2+x = x(x2-2x+1)
e). 3ab2-2a2b-ab = ab(3b-2a-1)
f). 1/2ac2-1/4a2-ab= 1/2a(c2-1/2a-2b)
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a) 7xy-21x = 7x(y-3)
b) ab2-a2c = a(b2-ac)
c) k2l-kl2 = kl(k-l)
d) x3-2x2+x = x(x2-2x+1)
e). 3ab2-2a2b-ab = ab(3b-2a-1)
f). 1/2ac2-1/4a2-ab= 1/2a(c2-1/2a-2b)