AM-1193
Laws of logarithms and change of base
A Math · Secondary 4 · Medium · Laws of logarithms and change of base
Express the equation
log2x+log8(x+2)=4 as a cubic equation in
x.
- 3x4+6x3−4096=0
- x4+2x3−4096=0
- 3x3+6x2−4096=0
- x3+2x2−4096=0
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