Need help ASAPwith these points

Step-by-step explanation:

f(x)=x²-2x+3

f(x)=-2x+12

x²-2x+3=-2x+12

x²-9=0

(x-3)(x+3)=0

x=3,-3

when x=3 ,f(x)=-2×3+12=-6+12=6

when x=-3,f(x)=-2×-3+12=6+12=18

solutions are (3,6);(-3,18)

A bucket that weighs 4 lb and a rope of negligible weight are used to draw water ... The bucket is filled with 40 lb of water and is pulled up at the rate of 2 ft/s, but ... Find the work done in pulling the bucket to the top of the well.1 ... Thus the work to lift the bucket out of the well is 320 ft-lb. 2. ... Since the well is 80 ft deep, it takes.