document.write( "Question 123986: Solve the following quadratic equations. (x - 1)^2 = 7 \n" ); document.write( "

Algebra.Com's Answer #90924 by checkley71(8403) $\"\"$ $\"About$

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(x-1)^2=7
\n" ); document.write( "x^2-2x+1=7
\n" ); document.write( "x^2-2x+1-7=0
\n" ); document.write( "x^2-2x-6=0
\n" ); document.write( "using the quadratic equation we get:
\n" ); document.write( " $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( "x=(2+-sqrt[-2^2-4*1*-6])/2*1
\n" ); document.write( "x=(2+-sqrt[4+24])/2
\n" ); document.write( "x=(2+-sqrt28)/2
\n" ); document.write( "x=(2+-5.29)/2
\n" ); document.write( "x=(2+5.29)/2
\n" ); document.write( "x=7.29/2
\n" ); document.write( "x=3.645 answer.
\n" ); document.write( "x=(2-5.29)/2
\n" ); document.write( "x=-3.29)/2
\n" ); document.write( "x=-1.645 answer. \n" ); document.write( "

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