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<span> |x^2-x-6| = 6
x^2-x-6=6 x^2-x-6-6=0 x^2-x-12=0 D=1+48=49=7^2 x=(1</span><span>±7)/2=></span><span>
x^2-x-6=-6 x^2-x=0 x*(x-1)=0 x=0 x=1
x</span>₁=4
<span>
x</span>₂=-3
<span>
x</span>₃=0
<span>
x</span>₄=1<span>
</span>