х²-5х+2х-10-3х+6х²
7х²-6х-10=0
Д=(-6)²-4*7*(-10)=36+280=316
х1,2=6+-2√79÷14
х1=6+√79÷2
х2=6-√79÷2
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х²-5х+2х-10-3х+6х²
7х²-6х-10=0
Д=(-6)²-4*7*(-10)=36+280=316
х1,2=6+-2√79÷14
х1=6+√79÷2
х2=6-√79÷2