Drag the expressions to show what values of the variables should be in the radical. Geometry

What scale factor was applied to the first rectangle to get the resulting image interior answer as a decimal in the box

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions. a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0