Question

me ajudem por favor!!

Answer 1

Teorema de Tales
x/x+2= 2x+4/25

(x+2).(2x+4)= 25x

2x²+4x+4x+8=25x

2x²+8x-25x+8=0

2x²-17x+8=0

∆=(-17)²-4.2.8
∆= 289- 64
∆= 225

x= -(-17)±√225/2.2
x= 17±15/4

x1= 17+15/4= 32/4=8

x2= 17-15/4= 2/4= 1/2