Ответ:
12х^2=-9х+30
12х^2+9х-30=0
D=81+1440=1521=39
x1=-9+39/24=30/24=5/4
x2=-9-39/24=-2
(5/4;0) (-2:0)
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Ответ:
12х^2=-9х+30
12х^2+9х-30=0
D=81+1440=1521=39
x1=-9+39/24=30/24=5/4
x2=-9-39/24=-2
Ответ:
(5/4;0) (-2:0)