Step-by-step explanation:
So technically, your replacing the x, with -8, 4, 12, 20. So bassically it would be 2*-8, 2*4, 2*12, 2*20. And those answers you get will get you, your range, so 2*-8 would be -16, 2*4= 8, 2*12=24, 2*20=40
So your ranges would be, -16, 8, 24 and 40.
