Can someone please help me with this question?
Find all roots of the polynomial f(t)=t^4-5t^3+5t^2+17t-42.
Thank you so much!
${\left({t}^{{2}}-{4}{t}+{7}\right)}\cdot{\left({t}+{2}\right)}\cdot{\left({t}-{3}\right)}$
+283 
+591 
