Answer 3.4:5
From Förberedande kurs i matematik 2
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Two cases:
- Choose \displaystyle \,a=8\, and \displaystyle \,b=-3\,. The solutions are \displaystyle \,z=1\, (triple root) and \displaystyle \,z=-3\,.
- Choose \displaystyle \,a=-8\, and \displaystyle \,b=-3\,. The solutions are \displaystyle \,z=-1\, (triple root) and \displaystyle \,z=3\,.
