document.write( "Question 1015549: What two numbers when multiplied together equal, -11250,\r
\n" ); document.write( "\n" ); document.write( "When added together = 125
\n" ); document.write( "

Algebra.Com's Answer #631882 by macston(5194)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "A and B are the two numbers
\n" ); document.write( ".
\n" ); document.write( "A+B=125
\n" ); document.write( "A=125-B
\n" ); document.write( ".
\n" ); document.write( "\"AB=-11250\"
\n" ); document.write( "\"%28125-B%29%28B%29=-11250\"
\n" ); document.write( "\"-B%5E2%2B125B=-11250\"
\n" ); document.write( "\"-B%5E2%2B125B%2B11250=0\"
\n" ); document.write( "\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "
Solved by pluggable solver: SOLVE quadratic equation with variable
Quadratic equation \"aB%5E2%2BbB%2Bc=0\" (in our case \"-1B%5E2%2B125B%2B11250+=+0\") has the following solutons:
\n" ); document.write( "
\n" ); document.write( " \"B%5B12%5D+=+%28b%2B-sqrt%28+b%5E2-4ac+%29%29%2F2%5Ca\"
\n" ); document.write( "
\n" ); document.write( " For these solutions to exist, the discriminant \"b%5E2-4ac\" should not be a negative number.
\n" ); document.write( "
\n" ); document.write( " First, we need to compute the discriminant \"b%5E2-4ac\": \"b%5E2-4ac=%28125%29%5E2-4%2A-1%2A11250=60625\".
\n" ); document.write( "
\n" ); document.write( " Discriminant d=60625 is greater than zero. That means that there are two solutions: \"+x%5B12%5D+=+%28-125%2B-sqrt%28+60625+%29%29%2F2%5Ca\".
\n" ); document.write( "
\n" ); document.write( " \"B%5B1%5D+=+%28-%28125%29%2Bsqrt%28+60625+%29%29%2F2%5C-1+=+-60.6107225224513\"
\n" ); document.write( " \"B%5B2%5D+=+%28-%28125%29-sqrt%28+60625+%29%29%2F2%5C-1+=+185.610722522451\"
\n" ); document.write( "
\n" ); document.write( " Quadratic expression \"-1B%5E2%2B125B%2B11250\" can be factored:
\n" ); document.write( " \"-1B%5E2%2B125B%2B11250+=+-1%28B--60.6107225224513%29%2A%28B-185.610722522451%29\"
\n" ); document.write( " Again, the answer is: -60.6107225224513, 185.610722522451.\n" ); document.write( "Here's your graph:
\n" ); document.write( "\"graph%28+500%2C+500%2C+-10%2C+10%2C+-20%2C+20%2C+-1%2Ax%5E2%2B125%2Ax%2B11250+%29\"

\n" ); document.write( "\n" ); document.write( "B=-60.6107 or 185.6107
\n" ); document.write( ".
\n" ); document.write( "A=125-(-60.6107)=185.6107
\n" ); document.write( ".
\n" ); document.write( "ANSWER: The two numbers are 185.6107 and -60.6107.
\n" ); document.write( ".
\n" ); document.write( "CHECK:
\n" ); document.write( ".
\n" ); document.write( "AB=-11250
\n" ); document.write( "(185.6107)(-60.6107)=-11250
\n" ); document.write( "11249.9945=11250 (error due to rounding roots)\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );