This was created by Keenan Xavier Lee - 2014. See my website for more information, lee-apcalculus.weebly.com.
8.3 Solving Logarithmic Equations
This was created by Keenan Xavier Lee - 2014. See my website for more information, lee-apcalculus.weebly.com.
Olof Rewriting Exponentials into Logs
�1� log,
36=2 �2� bgzg, 17=21 30122=144
62=36 289¥17 log ,z144=2
�4� 9-2=1 @8b=a81
bggtE= . 2. bgga - b
Find the unknown.
6064×-8 014=256
�8�
64×=4
�9� 6gzx=5bg#8=× log
,<256 =×
z5=×x.to#=I/=bg256_..y,
toga,<
4 =× 32=11.
= -2
63 . × 19'
2=×-216 '
- x 1- =×
361
This was created by Keenan Xavier Lee - 2014. See my website for more information, lee-apcalculus.weebly.com.
had Solvinglogsl Exponential Functions
1- isolate the logtermorexpmenliatterm .
2. Use "B0B " orusetheinversetogetunknmmatme .
3.
solve using appropriate technique .
Examples] Solve the equation .
105×-21=14 �2� 2( 332×-5=117 @hgz4x=55=35 2134=122
109535=11 (3P×= 61 25 '
- 4x
X= 2.209 log}
61 =2x 2¥<
bg#=x 8=×2
�4� logdsxtll) +5=8 50314×7-8=106314×9=114
bgdsxtll ) =3 4*4=38
63=5×+1169+38 =× . 4
216=5×+11 wg+38t4=X205=5×41
=×.
6.624€