Question 203985
{{{AreaOfRectangle = Length * Width}}}
Let Width be denoted by w
You are told {{{Length = 4 * Width}}} or {{{Length=4w}}} and the area = 196

So
{{{AreaOfRectangle = Length * Width}}}
{{{196 = (4w) * w }}}
{{{196 = 4w^2}}}
{{{46 = w^2}}}
So w = +- sqrt(46)
Sinvce the dimension cannot be negative, then w=sqrt(46)
Length = 4*w = 4*sqrt(46)


As a quadratic equation:
{{{0 = w^2 - 46}}}
*[invoke quadratic "x", 1, 0, -46]