Page 34 - More Higher algebra

5.

Find the solution of,

= log (2 − 9) + log ( − 1) − 2
2
2
When y = 0 then
log (2 − 9) + log ( − 1) = 2 log (2)
2
2
2

2
log [(2 − 9)( − 1)] = log (2 )
2
2
Remove the logs,
(2 − 9)( − 1) = 4

2
2 − 2 − 9 + 9 = 4
or

2
2 − 11 + 5 = 0
The fx keystrokes are,
w53 2=z11=5==

=

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