Answer:
-2
Step-by-step explanation:
-4 1/2 x 2 1/2 = -2
(x - y)(x - y + a)
8r.
If we substitute 3 into all of these equations, we get
8(3) which equals 24
6(3) which equals 18
9(3) which equals 27
7(3) which equals 21
8r is the one that equals 24 when 3 is substituted.
If I were to be honest I think you did it perfectly
