document.write( "Question 469210: Solve the quadratic equation. 3x(2x - 15) = -84 \n" ); document.write( "

Algebra.Com's Answer #321931 by Tatiana_Stebko(1539) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"3x%282x+-+15%29+=+-84\"$ divide by 3
\n" ); document.write( " $\"2x%5E2-15x=-28\"$
\n" ); document.write( " $\"2x%5E2-15x%2B28=0\"$
\n" ); document.write( " $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( " $\"x+=+%28-%28-15%29+%2B-+sqrt%28+%28-15%29%5E2-4%2A2%2A28+%29%29%2F%282%2A2%29+\"$
\n" ); document.write( " $\"x+=+%2815+%2B-+sqrt%28+1%29%29%2F4+\"$
\n" ); document.write( " $\"x+=+%2815+%2B1%29%2F4+=4\"$
\n" ); document.write( " $\"x+=+%2815+-1%29%2F4+=3.5\"$ \n" ); document.write( "

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