document.write( "Question 1044324: Hello, I am preparing for a test and I would like to know how to solve problems using a quadratic equation. For example : \"The length of a book is 4 cm more than its width and the area of the face of the book is 320 cm^2. Find the dimensions of the face of the book.\" \n" ); document.write( "
Algebra.Com's Answer #659597 by josgarithmetic(39616)\"\" \"About 
You can put this solution on YOUR website!
y is for length
\n" ); document.write( "x is for width
\n" ); document.write( "-
\n" ); document.write( "\"system%28y=4%2Bx%2Cxy=320%29\"
\n" ); document.write( "This will give you one quadratic equation. This example allows for simple substitution to create or form the quadratic equation.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"x%28x%2B4%29=320\"
\n" ); document.write( "\"x%5E2%2B4x=320\"
\n" ); document.write( "\"x%5E2%2B4x-320=0\"-------you would have learned how to solve this kind of equation already. Can the trinomial be factored? Yes, it seems factorable.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "...
\n" ); document.write( "\"system%28x=16%2Cy=20%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );