This is an absolute value problem.
Subst. -5 for x and 5 for y: |-(-5) - 2(5)| = |5 - 10| = |-5| = 5 (answer)
Hello there!
(4n + 4)(5n-8)
First,we need to distribute
(4n)(5n)+(4n)(-8)+(4)(5n)+(4)(-8)
20n² -32n + 20n - 32
20n² -12n - 32
Yes,you did it right. Good job!