Answer:
2.5(x + 2y - 1).
Step-by-step explanation:
2.5x + ( 5y) -2.5
2.5x + 5y - 2.5 (we can just remove the parentheses without changing the value of the expression)
Each coefficient is divisible by 2.5 so by the distributive law:
2.5x + 5y - 2.5
= 2.5(x + 2y - 1).
