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Given that frac 5 n 3 25 2n -2 5o find n - WAEC Mathematics 2010 Question

Given that \(\frac{5^{n +3}}{25^{2n -2}}\) = 5o, find n
A
n = 1
B
n = 2
C
n = 3
D
n = 5
correct option: c

(\frac{5^{n +3}}{25^{2n -2}}) = 5o

(\frac{5^{n + 3}}{5^{2(2n - 3)}}) = 5o

n + 3 - 4n + 6 = 0

-3n + 9 = 0

-3n = -9

n = (\frac{-9}{-3})

n = 3

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