Since x represents the length (in meters), the width, which is 7 meters greater, is x +7. The product of these dimensions is the area (in square meters):
x(x +7) = 170
In standard form, the quadratic is ...
x² +7x -170 = 0
B and D are the correct choices
(I'm going to use brackets as my absolute value bars lol)
[5 x -3]
[-15]
=15