Question 1110630
Solve for x giving [sic] 16^x-5*8^x=0 
(Please help me solve this question)
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Solve for x given 16^x-5*8^x=0 
(Please help me solve this question) - equations are solved.  Questions are answered.
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16^x - 5*8^x = 0
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(2^4)^x - 5*(2^3)^x = 0
2^(4x) - 5*2^(3x) = 0
2^(3x)*(x - 5*2) = 0
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2^(3x) = 0 ------- not possible for real values of x
or 
(x - 5*2) = 0
x - 10 = 0
x = 10