Question

The following shows Stella's answer to a problem on a math test.

3(1 + 2)

Stella's friend gave the following answer for the same problem.

3 · 1 + 3 · 2

Which shows why their answers are the same?


a + bc = (a + b)(a + c)
a + bc = ab + ac
a(b + c) = (a + b)(a + c)
a(b + c) = ab + ac

Answer 1

a(b + c) = ab + ac

Answer 2

This is called the distributive property

Answer 3

D

Answer 4

yes D