Question

Which properties were used to solve the following problem?
25(2x) + 25(3y)
(25 × 2)x + (25 × 3)y
(2 × 25)x + (3 × 25)y
50x + 75y

Answer 1

Step-by-step explanation:

25(2x) + 25(3y)

25 · (2 · x) + 25 · (3 · y)

(25 · 2) · x + (25 · 3) · y                Associative property (a · b) · c = a · (b · c)

(25 · 2)x + (25 · 3)y

(2 · 25)x + (3 · 25)y             Commutative property a · b = b · a

50x + 75y