document.write( "Question 1078193: 4^x-3*2^x+3=-128 \n" ); document.write( "

Algebra.Com's Answer #692678 by stanbon(75887) $\"\"$ $\"About$

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4^(x-3)*2^(x+3) = -128
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\n" ); document.write( "2^(2x-6)*2^(x+3) = -128
\n" ); document.write( "2^(2x-6+x+3) = -128
\n" ); document.write( "2^(3x-3) = -2^7
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\n" ); document.write( "Comment:: No power of 2 can be negative.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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