document.write( "Question 938956: I am stuck and do not know how to solve this problem.
\n" ); document.write( "log(4x) – log(12 + √x) = 2 \n" ); document.write( "

Algebra.Com's Answer #572116 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Convert $\"+2+\"$ to a log
\n" ); document.write( " $\"+2+=+log%28100%29+\"$
\n" ); document.write( " $\"+log%284x%29+-+log%28%28+12%2B+sqrt%28x%29%29%29+=+log%28100%29+\"$
\n" ); document.write( " $\"+log%28%28+4x+%2F+%28+12+%2B+sqrt%28x%29+%29%29%29+=+log%28100%29+\"$
\n" ); document.write( " $\"+4x+%2F+%28+12+%2B+sqrt%28x%29+%29+=+100+\"$
\n" ); document.write( " $\"+4x+=+100%2A%28+12+%2B+sqrt%28x%29%29+\"$
\n" ); document.write( " $\"+4x+=+1200+%2B+100%2Asqrt%28x%29+\"$
\n" ); document.write( " $\"+x+=+300+%2B+25%2Asqrt%28x%29+\"$
\n" ); document.write( " $\"+25%2Asqrt%28x%29+=+x+-+300+\"$
\n" ); document.write( "square both sides
\n" ); document.write( " $\"+625x+=+x%5E2+-+600x+%2B+90000+\"$
\n" ); document.write( " $\"+x%5E2+-+1225x+%2B+90000+=+0+\"$
\n" ); document.write( "-----------------------------
\n" ); document.write( "Use the quadratic formula to solve
\n" ); document.write( " $\"+x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( " $\"+a+=+1+\"$
\n" ); document.write( " $\"+b+=+-1225+\"$
\n" ); document.write( " $\"+c+=+90000+\"$
\n" ); document.write( "You can finish\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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