Question

Решите уравнение: 0,1x^2-14=-0,4x

Answer 1

$0,1x^2-14=-0,4x 0,1x^2+0,4x-14=0 D=0,16+5,6= sqrt{5,76} =2,4 x_1=10 x_2=-14$

Answer 2

0.1x^2-0.4x-14=0
D=0.16-4*0.1*(-14)=5.76
x1=0.4+2.4/2*0.1=14
x2=0.4-2.4/2*0.1=-10