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- Feb 14, 2012

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\(\displaystyle p(x)=4x^3-2x^2-15x+9\)

\(\displaystyle q(x)=12x^3+6x^2-7x+1\)

Let A be the largest root of \(\displaystyle p(x)\) and B the largest root of \(\displaystyle q(x)\). Show that \(\displaystyle A^2+3B^2=4\)

Hi all, this problem seems to be a little harder than usual for me and I hope someone will give me

*on how to solve it...*

**hint**Thanks in advance.