Х^4-25х^2=0 х^2+5x-6/x+1=0

Question

Х^4-25х^2=0
х^2+5x-6/x+1=0

Answer 1

X⁴-25x²=0
x²(x²-25)=0
x₁=0  x₂=5  x₃=-5.
(x²+5x-6)/(x+1)=0    ОДЗ:  х≠-1
(x-1)(x+6)/(x+1)=0
x₁=1   x₂=-6.