document.write( "Question 1009103: sqrt (x-1)= 4 sqrt (x+1) \n" ); document.write( "

Algebra.Com's Answer #624652 by fractalier(6550) $\"\"$ $\"About$

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From
\n" ); document.write( "sqrt (x-1)= 4 sqrt (x+1)
\n" ); document.write( "we square both sides and get
\n" ); document.write( "x - 1 = 16(x + 1)
\n" ); document.write( "x - 1 = 16x + 16
\n" ); document.write( "Rearranging we get
\n" ); document.write( "-17 = 15x
\n" ); document.write( "x = -17/15
\n" ); document.write( "But notice this gives unreal numbers, as you cannot have real roots of negative numbers...therefore the answer is
\n" ); document.write( "No Solution (in the real numbers) \n" ); document.write( "

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