itbpF50.75pt21.75pt6ptex3.wmfFind the roots of the expression x2 + 4

  1. ClickitbpF20.125pt20.125pt2pttext.wmfor, from the Insert menu, choose Math to start mathematics.

  2. Type x, clickitbpF19.5625pt18.8125pt2ptsupscrip.wmf, type 2,press spacebar, type +4.

  3. From the Maple menu, choose Polynomials and then choose Roots. Your screen shows this result:


    $\displaystyle \fbox{% \begin{tabular}{lll} \rule[-0.2in]{0in}{0.45in} & $x^{2... ...2i \\ -2i \end{array} $\ & \rule[-0.2in]{0in}{0.45in}% \end{tabular} } $