Question

Сократить дробь х^2+2х+1/х^2+4

Answer 1

x^2+2x+1:x^2+4
x^2+2x+(1/x)^2+4
x^2+2x+1/x^2+4
x^4+2x^3+4x^2+1/x^2

Answer 2

х²+2х+1=0 D= 4-4=0 x=-2 (x-2)/x²-4=(x-2)/(x-2)(x+2)=0