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

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Answer 1 · 2015-09-14T06:06:19

$=color(green)(10a^2-5ab$

$color(green)(5a)(2a−b)$

Here $color(green)(5a)$ needs to be multiplied with both terms within the bracket.
$=color(green)(5a) * (2a) +color(green)(5a)*( −b)$

$=color(green)(10a^2-5ab$

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