if X,X+2,and X+6 are in G.P,then X=
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(x+2)(x+2)= (x)(x+6)
x^2 + 4x + 4 = x^2 + 6x
4x + 4 = 6x
6x - 4x = 4
2x = 4
x = 2
x^2 + 4x + 4 = x^2 + 6x
4x + 4 = 6x
6x - 4x = 4
2x = 4
x = 2
meghana228:
why u took two times x+2
please give clarity
......
is there any formula behind it
(x+2)^2
i used formula of gp
b^2=ac
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