If f (x) = startroot x endroot + 12 and g (x) = 2 startroot x endroot, what is the value of (f – g)(144)

Ineed to know the answer to this algebra question.

Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.