Question

a
Solve for x if logx100 - 2 logx2 = 2
b Evaluate log.72-logo2​

Answer 1

Step-by-step explanation:

logx(100) - 2logx(2) = 2

logx100 - logx4 = 2 (since alogb = logb^a)

logx(100/4) = 2 (since loga - logb = loga/b)

logx(25) = 2

25 = x²

x = 5