Question 191065
Ok, the problem below I just can't figure out! Can you please help me? can you show me how to get the answer? 
The area of a rectangle is 80 square feet and its length is 1 foot more than its width. Find its width. 
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Area = l*w
A = w*(w+1) = 80
{{{w^2 + w - 80 = 0}}}
*[invoke solve_quadratic_equation 1,1,-80]

Use the positive value.