Ridici toata ecuatia la puterea a 2
[V(x+8-6Vx-1)]² = 1²
x+8-6V(x-1) = 1
-6V(x-1) = 1-x-8
-6V(x-1) = -7-x ridici din nou la puterea a 2
(-6)²(Vx-1)² = (-7-x)²
36(x-1) = 49+14x+x²
36x-36 = 49+14x+x²
36x-36-49-14x-x²=0
22x-85-x²=0 /*(-1)
x²-22x+85 = 0
x²-5x-17x+85= 0
x(x-5)-17(x-5) =0
(x-5)(x-17)=0
x-5= 0 => x1 = 5
x-17 = 0 => x2 = 17
