Question

(b) Solve for x if log2 (x power 2 -4)= 5.​

Answer 1

Answer:

+-  6 cm

Step-by-step explanation:

log2{x^2-4}=5

log2{x^2-4}=5log2 [2]

log2{x^2-4}=log2  [32]

x^2-4=32

x^2=36

x=+-  6