Составьте квадратное уравнение, корни которого равны: -2 и -1/2(одна вторая)
dianarudak
2
18.05.2019 17:00
1
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1
х в квадрате + 3х+1=0
по теореме Виета корни -2 и - 1/2
-2-1/2=-p=-2,5 следоватьльно p=2,5
-2*-1/2=q=1
x2+2,5+1=0