Ответ:
х2+2х-8= 0
D= 4-4*1*-8=36(6)
х1=(-2+6):2=2
х2=(-2-6):2=-4
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Ответ:
х2+2х-8= 0
D= 4-4*1*-8=36(6)
х1=(-2+6):2=2
х2=(-2-6):2=-4