Hi please tell this question on paper
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(5)^2x-1 - (25)^x-1 = 2500
(5)^2x-1 - (5)^2(x-1) = 2500
(5)^2x-1 - (5)^2x-2 = 2500
(5)^2x-1 (5-1) = 2500 ( taking (5)^2x-1 as common )
4 × (5)^2x-2 = 2500
(5)^2x-2 = 2500/4
(5)^2x-2 = 625
(5)^2x-2 = 5^4
2x-2 = 4
2x = 6
Hence, x = 3
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