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Find x, if (2/5)^(-3)xx (2/5)^(15)=(2/5)...

Find `x`, if `(2/5)^(-3)xx (2/5)^(15)=(2/5)^(2+3x)`

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`(2/5)^(-3)xx\ (2/5)^(15)=(2/5)^(2+3x)`
`(2/5)^12=(3/2)^(2+3x)`
On comparing the powers,
`=>2+3x=12`
`=>x=10/3`
Hence, the value of `x` is `10/3`.
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