How do you simplify $2 (2 a + b)$ $2(2a + b)$ ?

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Answer 1 · 2015-09-14T06:04:41

$= 4 a + 2 b$ $=color(blue)(4a +2b$

$2 (2 a + b)$ $color(blue)(2)(2a+b)$

Here $2$ $color(blue)(2)$ needs to be multiplied with both the terms within the bracket.

$= 2 \times (2 a) + 2 \times (b)$ $=color(blue)(2)xx(2a) +color(blue)(2)xx(b)$

$= 4 a + 2 b$ $=color(blue)(4a +2b$

How do you simplify 2(2a + b)2(2a+b)2(2a + b)?