How do you simplify 4a(5a - 2)?

May 21, 2016

$a = 0$

$a = \frac{2}{5}$

Explanation:

Expand the brackets:

$20 {a}^{2} - 8 a$

$a \left(20 a - 8\right)$

You can then solve the equation to find $a$.

$a = 0$

$a = \frac{8}{20} = \frac{2}{5}$

Or, you could solve the equation directly from the question.