Verified answer

a^m*a^n = a^(m+n)

log ab = log |a| + log |b|

x^ (log(y) z) = z^( log(y) x)

2^(log(5) 75) = 2^(log(5)  3*25) = 2^(log(5) 3 + log(5) 25) = 2^2*2^(log(5) 3) = 4*3^(log(5) 2)

4 * 3^(log(5) 2) - 2^(log(5) 75) = 0