Page 30 - More Higher algebra

−2
log ( ) = log( − 1)
2
− 1
Remove the logs,

−2
= ( − 1)
2
− 1

1
=
2
− 1 ( − 1) 2

1
=
( + 1)( − 1) ( − 1) 2

1
=
+ 1 − 1

Rearranging to give,
2
− 2 − 1

You can use your fx calculator to solve this quadratic,

(w53)

Enter the coefficients,
1=z2=z1==

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