document.write( "Question 776865: The question asks to solve the problem using the square root method: (x-1)^2=16
\n" ); document.write( "I have already attempted to solve for it but I did it two ways and would like to know if they are correct since I get two different answers.
\n" ); document.write( "(x-1)^2=16
\n" ); document.write( "Sq.rt(x-1)^2=+/-sq.rt 16
\n" ); document.write( "x-1=+ or - 4
\n" ); document.write( "x=+/-5
\n" ); document.write( "and this is the second way I tried to solve it
\n" ); document.write( "x^2-1=16
\n" ); document.write( "Sq.rt x^2=Sq.rt17
\n" ); document.write( "x=+/-sq.rt 17 \n" ); document.write( "

Algebra.Com's Answer #473761 by rothauserc(4718) $\"\"$ $\"About$

You can put this solution on YOUR website!
the square root method says take the square root of both sides of the = sign
\n" ); document.write( "(x-1)^2=16
\n" ); document.write( "CASE 1
\n" ); document.write( "x-1 = 4
\n" ); document.write( "x = 5
\n" ); document.write( "now check the answer
\n" ); document.write( "(5-1)^2 = 16
\n" ); document.write( "4^2 = 16
\n" ); document.write( "16 = 16
\n" ); document.write( "CASE 2
\n" ); document.write( "x-1 = -4
\n" ); document.write( "x = -3
\n" ); document.write( "now check answer
\n" ); document.write( "(-3-1)^2 = 16
\n" ); document.write( "-4^2 = 16
\n" ); document.write( "16 = 16\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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