document.write( "Question 1202389: 3^x-1 + 4^x+2 =0 \n" ); document.write( "
Algebra.Com's Answer #837171 by ikleyn(52787)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "What is written here ?     How to read it ?\r
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\n" ); document.write( "\n" ); document.write( "Use parentheses in the formulas that you post to this forum,
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\n" ); document.write( "\n" ); document.write( "In this case, the parentheses are needed to show which part
\n" ); document.write( "of the formula/(equation) is a degree (which part is an exponent).\r
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