document.write( "Question 122493: Solve the eqation. (x-10)(x-2)=-20 \n" ); document.write( "

Algebra.Com's Answer #89963 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"%28x-10%29%28x-2%29=-20\"$
\n" ); document.write( "Use the FOIL method (First, Outer, Inner, Last)
\n" ); document.write( " $\"%28x%29%28x%29%2B%28x%29%28-2%29%2B%28-10%29%28x%29%2B%28-10%29%28-2%29=-20\"$
\n" ); document.write( " $\"x%5E2-2x-10x%2B20=-20\"$
\n" ); document.write( " $\"x%5E2-12x%2B20=-20\"$
\n" ); document.write( " $\"x%5E2-12x%2B40=0\"$
\n" ); document.write( " $\"x+=+%28-%28-12%29+%2B-+sqrt%28+12%5E2-4%2A%281%29%2A%2840%29+%29%29%2F%282%29+\"$
\n" ); document.write( " $\"x+=+%2812+%2B-+sqrt%28+144-160+%29%29%2F%282%29+\"$
\n" ); document.write( " $\"x+=+%2812+%2B-+sqrt%28+-16+%29%29%2F%282%29+\"$
\n" ); document.write( " $\"x+=+%2812+%2B-+4%2Asqrt%28+-1+%29%29%2F%282%29+\"$
\n" ); document.write( " $\"x+=+6+%2B-+2%2Asqrt%28+-1+%29+\"$
\n" ); document.write( " $\"x+=+6+%2B-+2i+\"$ \n" ); document.write( "

\n" );