document.write( "Question 55475: solve
\n" ); document.write( "49x^2-4 \n" ); document.write( "
Algebra.Com's Answer #37635 by tutorcecilia(2152)\"\" \"About 
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49x^2-4=0 [Set the equation equal to zero]
\n" ); document.write( "49x^2=4
\n" ); document.write( "sqrt49x^2=sqrt4
\n" ); document.write( "7x=2
\n" ); document.write( "x=2/7
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\n" ); document.write( "Check by plugging (x=2/7) back into the original equation.
\n" ); document.write( "49(2/7)^2-4=0
\n" ); document.write( "4-4=0
\n" ); document.write( "0=0 [checks out]
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