Respuesta :

Answer: 7x+28

Step-by-step explanation:

7(x)=7x

7(4)=28

7x+28

Step 1.)

7x + 7 * 4.

We need to expand this term by multiplying a term and an expression.

The following product distributive property will be used:

A(B+C) = AB + AC

Numerical factors in this term have been multiplied.

In our example, the resulting expression will consist of 2 terms:

   the first term is a product of 7 and x

   the second term is a product of 7 and 4.

7x + (7 * 4)

Numerical factors in this term have been multiplied.

Which equals:

7x + 28

Hope you understand this and it helps. Have a great evening!