How do i use subtraction to find the area of the side of the barn?

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

What is the area of the shaded sector?

Quadrilateral efgh was dilated with the origin as the center of dilation to create quadrilateral e'f'g'h'. the quadrilateral was dilated using a scale factor of 2.5. the lengths of the sides of quadrilateral efgh are given. what is the length of side f'g'?