antwoorden

x=-4 of x=4	x=0 of x=-2
x=$ -\sqrt 6 $ of $ \sqrt 6 $	x=0 of x=$-\frac{1}{2}$
x=-1 of x=-3	x=8 of x=-2
x=2 of x=-6	x=1
x=0 of x=1	x=0
x=3 of x=1	x=0 of x=2