Question

Condense log 2 4 + log 2 5

Answer 1

Log 2 4 + log 2 5= log 2 4x5= log 2 20
This exercises the log rule log a + log b= log ab

Answer 2

`log_(2)` 20

Explanation:

using the rule of logarithms

loga + logb = logab

then

`log_(2)`4 +
`log_(2)`5

=
`log_(2)` (4 × 5)

=
`log_(2)`20