Question

Решите уравнение:
49 х³+14х²+х=0

Answer 1

x*(49x^2+14x+1)=0

x*(7x+1)^2=0

x=0  или  7х+1=0

х=0  или  х=-1/7

Answer 2

49x³+14x²+x=0
x(49x²+14x+1)=0
x1=0
D=196-196=0
x2=-14/98=-1/7