document.write( "Question 443363: Solve for x: 2^(x+1)+5=17. express the answer to the nearest hundredth. please answer as soon as possible, i do not understand it
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Algebra.Com's Answer #305812 by swincher4391(1107) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"2%5E%28x%2B1%29+%2B+5+=17\"$
\n" ); document.write( "Subtract 5.
\n" ); document.write( " $\"2%5E%28x%2B1%29+=+12\"$
\n" ); document.write( "Take the log(base2) of both sides.
\n" ); document.write( " $\"log%282%2C2%5E%28x%2B1%29%29+=+log%282%2C12%29\"$
\n" ); document.write( " $\"x%2B1+=+log%282%2C12%29\"$
\n" ); document.write( " $\"+x+=+log%282%2C12%29+-1\"$
\n" ); document.write( "Use the change of base formula.
\n" ); document.write( " $\"log%28b%2Ca%29+=+log%28a%29%2Flog%28b%29\"$
\n" ); document.write( "Stupid way to remember this: The base goes in the basement. :P
\n" ); document.write( " $\"+x+=+%28log%2812%29%2Flog%282%29%29+-+1\"$
\n" ); document.write( "Put this in your calculator to get:
\n" ); document.write( " $\"highlight%28x+=+2.58%29\"$ \r
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