w(x)=a(x-2)(x+1)(x-5)
w(3)=40
a(3-2)(3+1)(3-5)=40
a*1*4*(-2)=40
-8a=40 /:-8
a=-5
Odp: b
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w(x)=a(x-2)(x+1)(x-5)
w(3)=40
a(3-2)(3+1)(3-5)=40
a*1*4*(-2)=40
-8a=40 /:-8
a=-5
Odp: b