Question

if x+9,x-6,4are the first three element of g.p then xis​

Answer 1

Answer:

x = 0  or 16

Step-by-step explanation:

x+9, x-6, 4are the first three element of g.p

=> (x + 9)4  = (x-6)²

=> 4x + 36 = x² + 36 - 12x

=> x² - 16x  = 0

=> x(x - 16) = 0

=> x = 0  or 16

if x = 0  then GP

9 , - 6  , 4  with common ratio -2/3

if x = 16 then GP

25  , 10  , 4  with common ratio  2/5