Respuesta :

choixongdong
PK=5x and KN=x2−14 
PK = KN
so
5x = x^2 - 14
x^2 - 5x - 14 = 0
(x -7)(x+2) = 0
x+2=0,x = -2
x-7=0;x = 7
so answer for x is 7
PK=5x  = 5(7) = 35
KN=x^2−14 = 7^2 - 14 = 49 - 14 = 35
and 
PN = PK + KN
PN = 35 + 35
PN = 70

answer
C. 70

DeltaPlayz

Answer:

The answer is 70

Step-by-step explanation:

I took the test.

good job