document.write( "Question 110147: 2^2x - 12(2^x) + 32 = 0\r
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document.write( "I know the answers are 2 and 3 but I do not know how to prove it algebraically \n" );
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Algebra.Com's Answer #80280 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! let a=2^x ... a^2-12a+32=0 ... (a-8)(a-4)=0 \n" ); document.write( " |