Polynomial Functions and Complex Zeros Practice Test

Based on the passage, the degree-2 polynomial $v(x)=8x^2+16x+13$ has $\Delta=256-416=-160$; calculate the complex zeros using the quadratic formula and simplify $\sqrt{-160}=4\sqrt{10},i$.​

Using the polynomial provided, a quadratic $u(x)=3x^2-18x+31$ has $\Delta=324-372=-48$; calculate the complex zeros with the quadratic formula, rewriting $\sqrt{-48}=4\sqrt{3},i$ and simplifying.​