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Finding value of x
4x = 256
⟹ x = 256/4
⟹ x = 64
Putting value of x in 6²x - 8
6²x - 8
= 6²(64 - 8)
= 6²(56)
= 6 × 6 × 56
= 36 × 56
= 2016 (Required Answer)
Therefore,if 4x=256 then the value of 6²x-8 is 2016
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