SOLUTION: Check that (2+i) is a root of {{{ z^4 + 2z^3 - 9z^2 - 10z + 50 = 0 }}}. Find the remaining three roots.

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: Check that (2+i) is a root of {{{ z^4 + 2z^3 - 9z^2 - 10z + 50 = 0 }}}. Find the remaining three roots.      Log On