Question 109719
the area of the glass is 9 ft^2 (3*3) ... you have 7 ft^2 of cherry, so the area of the table will be 16 ft^2 (9+7)


let x="width of border" ... (3+2x)^2-9=7 ... 9+12x+4x^2-9=7


4x^2+12x-7=0 ... (2x+7)(2x-1)=0