(5/4)x²+7x+9=0 I*4
5x²+28x+36=0
D=784-720=64
x1= (-28+8)/10= -2
x2= (-28-8)/10= -36/10= -3,6
Ответ: -2 и -3,6
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(5/4)x²+7x+9=0 I*4
5x²+28x+36=0
D=784-720=64
x1= (-28+8)/10= -2
x2= (-28-8)/10= -36/10= -3,6
Ответ: -2 и -3,6
Verified answer
Ответ:-2; -3,6