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VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Mathematical Methods CAS => Topic started by: VVVCCCEEE on April 22, 2018, 05:16:35 pm

Title: Help?
Post by: VVVCCCEEE on April 22, 2018, 05:16:35 pm: Hi, could you guys help me with 12b i , been stuck on it for ages.
Thanks
Title: Re: Help?
Post by: kazzam on April 22, 2018, 07:13:03 pm: $let Q(x) = (mx+c)$
$m=1$
$p(x)=(x-1)(x-2)(x+c)+x+1$
$p(-1)=(-2)(-3)(-1+c)=0$
$p(x)=(x-1)(x-2)(x+1)+x+1$
$p(x)=x^3-2x^2+3$
Title: Re: Help?
Post by: VVVCCCEEE on April 22, 2018, 08:30:45 pm: Thank you, forgot to expand it