4 3
----- + ------ = 1
t t-2
4*(t-2)+3t =1*t*(t-2)
4t-8+3t=t²-2t
t²-9t+8=0
D=81-32=49 √D=7
t₁ = (9+7)/2 = 8
t₂ = (9-7)/2 = 1
4x+7/x -8 =8
4x+7/x-16=0
4x²-16х+7=0
D=256-112=144 √D=12
x₁=(16+12)/8=28/8 = 7/2
x₂=(16-12)/8=4/8 = 1/2
4х+7/х-8=1
4x²-9x+7=0
D=81-56=25
x₃= (9+5)/8=14/8= 7/4
x₄=(9-5)/8=4/8=1/2
Ответ х=1/2