\n" );
document.write( "Hi,
\n" );
document.write( "Question States***height of a triangle is 4 feet less than the base
\n" );
document.write( "1/2(x(x-4)=198
\n" );
document.write( "1/2(x^2-4x)=198
\n" );
document.write( "x^2-4x-396 = 0 |Hint: sqrt(396) = ~19.9 (2*8) ends in 6
\n" );
document.write( "(x -22)(x+18) = 0 (Tossing out the negative solution for unit measure)
\n" );
document.write( " x = 22ft, the width. Then length is 18ft
\n" );
document.write( "Or quadratic Eq always works
\n" );
document.write( " \n" );
document.write( "\n" );
document.write( " Solved by pluggable solver: SOLVE quadratic equation with variable |
\n" );
document.write( "Quadratic equation (in our case ) has the following solutons: \n" );
document.write( " \n" );
document.write( "  \n" );
document.write( " \n" );
document.write( " For these solutions to exist, the discriminant should not be a negative number. \n" );
document.write( " \n" );
document.write( " First, we need to compute the discriminant : . \n" );
document.write( " \n" );
document.write( " Discriminant d=1600 is greater than zero. That means that there are two solutions: . \n" );
document.write( " \n" );
document.write( "  \n" );
document.write( "  \n" );
document.write( " \n" );
document.write( " Quadratic expression can be factored: \n" );
document.write( "  \n" );
document.write( " Again, the answer is: 22, -18.\n" );
document.write( "Here's your graph: \n" );
document.write( " |
\n" );
document.write( "
\n" );
document.write( "
\n" );
document.write( "