Asked by Kellie
The problem 8^x = 16^x+2 the choices a)8 and b)-8. Help please!
Given that information I want to say the answer is -8 ?
where is the 2. Use parentheses.
Is it 16<sup>x+2</sup> or 16<sup>x</sup>+2
The 2 is part of the exponent.
Take the log of both sides.
log 8<sup>x</sup>=log 16<sup>x+2</sup>
x*log 8 = x+2*log 16
solve for x
Perhaps I should have used parentheses, too.
x*log 8 = (x+2)*log 16.
Given that information I want to say the answer is -8 ?
where is the 2. Use parentheses.
Is it 16<sup>x+2</sup> or 16<sup>x</sup>+2
The 2 is part of the exponent.
Take the log of both sides.
log 8<sup>x</sup>=log 16<sup>x+2</sup>
x*log 8 = x+2*log 16
solve for x
Perhaps I should have used parentheses, too.
x*log 8 = (x+2)*log 16.
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