Question 1044324
y is for length
x is for width
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{{{system(y=4+x,xy=320)}}}
This will give you one quadratic equation.  This example allows for simple substitution to create or form the quadratic equation.


{{{x(x+4)=320}}}
{{{x^2+4x=320}}}
{{{x^2+4x-320=0}}}-------you would have learned how to solve this kind of equation already.  Can the trinomial be factored?  Yes, it seems factorable.


...
{{{system(x=16,y=20)}}}