Ontbind in factoren
16 - x² =
32 - 8y =
1 + 4z + 4z² =
64 - 20x + 40x² =
-4x - 8ax =
x² + 100 - 20x =
2xyb + 4xz =
x² - 0,16 =
a² + 2ax + x² =
-25 + a² =
2x² - 12x + 18 =
5x² - 45 =

door Johan Vervaeke