Emma B.
asked • 12/09/20Logarithm question
x2+7=6x*log8x*logx16
find domain and solution
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1 Expert Answer
Yao Y. answered • 12/10/20
Tutor
4
(2)
Use Algebra 1 often
x2+7=6x*log8x*logx16 domain x>0 b/c logx, x cant be 0 or negtative
x^2+7=6x (logx/log8)(log16/logx)
x^2+7=6x(log16/log8)
x^2+7=6x(log816)
calculator
x^2+7=8x
x^2-8x+7
(x-7)(x-1)
solution
x=7,1
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Mark M.
Are there two different bases, 8 and x?12/09/20