Question

4a - 4( 15a - 2) - 8

Answer 1

Hello!

The problem to solve: 4a - 4(15a - 2) - 8

The first thing to do is to apply the Distributive Property, which is: a(b + c) = ab + ac.

Here we have: -4(15a - 2). We must multiply -4 by 15a and -2. Let's do it.

4a - 4(15a - 2) - 8
4a - 60a + 8 - 8

Now we can go ahead and combine like terms; add the constants and add the a-terms. 4a minus 60a is equal to negative 56a. 8 minus 8 is zero, so the 8's cancel out, and we're left with:

-56a

That's your answer! I hope this helps you. (:

Answer 2

 Hey there!

In order to simplify this expression (notice how it's an expression and not an equation because it's not set equal to something) we can use addition and subtraction, and the distributive property which is defined as:

a(b+c) = ab + ac

Using this property, we can simplify this expression to:

4a - 60a + 8 - 8

Notice how -4(-2) was positive 8.

Simplify "a" terms:

-56a + 8 - 8

Since it's +8 - 8, the 8's cancel out.

Therefore, we just have -56a.

Hope this helps!