Aufgabe: Zerlege den quadratischen Term in Faktoren der Form \((x-x_1 )(x-x_2 )\)
\(x^2 -8x+25=0\)
\(x^2 -8x=-25\)
\((x -\frac{8}{2})^2=-25+(\frac{8}{2})^2\)
\((x -4)^2=-25+16=-9=9i^2 | \sqrt{~~}\)
1.)\(x -4=3i\)
\(x_1 =4+3i\)
2.)\(x -4=-3i\)
\(x_2 =4-3i\)
\(x^2 -8x+25=(x-(4+3i) )(x-(4-3i) )\)
\(x^2 -8x+25=(x-4-3i)(x-4+3i)\)