# How do you multiply 4a(5a - 2)?

Apr 16, 2016

#### Answer:

$4 a \left(5 a - 2\right) = 20 {a}^{2} - 8 a$

#### Explanation:

To solve this we use the distributive property, and it goes like this:
$a \left(b + c\right) = a b + a c$

Now by applying this knowledge, we can solve this problem:
$4 a \left(5 a - 2\right) = 20 {a}^{2} - 8 a$