(x²+2x-8) / (x²-4) = 7 / (x+2)
(x²+2x-8) / (x-2)(x+2) = 7 / (x+2)
(x²+2x-8) / (x-2)(x+2) = (7x-14) / (x-2)(x+2)
x²+2x-8 = 7x-14
x²+2x-8-7x+14 = 0
x²-5x+6 = 0
a=1 ; b=-5 ; c=6
D=√25-24=√1=1
5+1 6
x₁ = ____ = __ = 3.
2 2
5-1 4
x₂ = ____ = __ = 2.
2 2
Ответ : 2 ; 3.