Question

2 ki ghath x+4 -2ki ghathx+2 =3

Answer 1

Answer:

let

2^x be k

given question

2^(x+4) - 2^(x+2) = 3

can be written as

can be written as2^x multiply 2⁴ - 2^x multiply 2² = 3

now put 2^x = k

we get

2⁴k - 2²k = 3

16k - 4k = 3

12k = 3

k = 1/4

as k = 2^x

we gef.

2^x = 1/4

2^x = 1/2²

can be written as

2^x = 2^-2

thus comparison we get

x = -2