document.write( "Question 1132358: how do you solve x^2-8x=10 using the quadratic formula \n" ); document.write( "

Algebra.Com's Answer #749375 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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how do you solve x^2-8x=10 using the quadratic formula
\n" ); document.write( "put in the form ax^2 + bx - 10 = 0
\n" ); document.write( ":
\n" ); document.write( " $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( "a=1; b=-8; c=-10
\n" ); document.write( " $\"x+=+%28-%28-8%29+%2B-+sqrt%28+%28-8%5E2%29+-4%2A1%2A-10+%29%29%2F%282%2A1%29+\"$
\n" ); document.write( ":
\n" ); document.write( " $\"x+=+%288+%2B-+sqrt%28+64+%2B+40%29%2F%282%29%29+\"$
\n" ); document.write( ":
\n" ); document.write( " $\"x+=+%288+%2B-+sqrt%28+104%29%29%2F%282%29+\"$
\n" ); document.write( ":
\n" ); document.write( " $\"x+=+%288+%2B-+10.2%29%2F%282%29+\"$
\n" ); document.write( "two solutions
\n" ); document.write( " $\"+x+=+18.2%2F2\"$
\n" ); document.write( "x = 9.1
\n" ); document.write( "and
\n" ); document.write( " $\"x+=+-2.2%2F2\"$
\n" ); document.write( "x = -1.1 \n" ); document.write( "

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