Use f(0)=9\displaystyle {f{{\left({0}\right)}}}={9}f(0)=9 and f(1)=−1\displaystyle {f{{\left({1}\right)}}}=-{1}f(1)=−1 to compute f(5)\displaystyle {f{{\left({5}\right)}}}f(5) given:
f(w+2)=−5f(w)+8f(w+1)\displaystyle {f{{\left({w}+{2}\right)}}}=-{5}{f{{\left({w}\right)}}}+{8}{f{{\left({w}+{1}\right)}}}f(w+2)=−5f(w)+8f(w+1)
f(5)=\displaystyle {f{{\left({5}\right)}}}=f(5)= Preview Question 6
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