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

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Answer 1 · 2016-05-21T15:52:02

$a = 0$ $a=0$

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

Expand the brackets:

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

$a (20 a - 8)$ $a(20a-8)$

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

$a = 0$ $a=0$

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

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

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