Expand 4(x + 6).

Step by step

The question

Question: simplify 4(x + 6).

Simplify means: write it shorter, with the same value.

1 Open the brackets

The 4 in front of the bracket multiplies every part inside.

So we write 4 times each part.

4 times x is 4x.

4 times 6 is 24.

2 Check

Let's check.

We pick a small number for each letter: x = 2.

Any number works, and a small one keeps the sums easy.

We put it into the question.

Now into our answer.

Both give 32.

Same value, so 4x + 24 is right!

Let's look back.

First: open the brackets.

Last: check.