Eamon uses the greatest common factor and the distributive property to rewrite this sum:

28 + 42

Which expression does Eamon write?

A. 7 (4+6)

B. 14 (2+3

C. 21 (1+2)

D. 28 (1+2

B) 14 (2+3)

14 is the greatest common factor, it can be divided by two numbers, 7 and 2

option A, 7 is the least common factor it can only be divided once by 7 so although A = 70 it isn't the greatest common factor

Now to check if B is correct

Use order of operations to solve P E M D A S

2+3 = 5

14 (5)

Multiply

70, Answer is 70 as his sum.

B is correct