Page 46 - More Higher algebra

Examples 7:

1. Solve for x,

1 6−
( ) = 32
2

Whenever you see an expression like this, take
natural logs of both sides,

1 6−
ln [( ) ] = ln(32)
2

or
1
(6 − ) ln [ ] = ln(32)
2

ln(32)
6 − =
ln[1/2]

Leaving
ln(32)
= 6 −
ln[1/2]

The fx keystrokes to perform this calculation are,
6ph32)ah0.5)=

42