How do you simplify $2 \sqrt{5} + 2 \sqrt{5}$ $2 sqrt 5+ 2 sqrt5$ ?

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Answer 1 · 2016-02-14T09:53:21

$4 \sqrt{5}$ $4sqrt5$

Treat radicals like variables, we can only add or subtract those with similar radicals

Let $x = \sqrt{5}$ $x = sqrt5$

$\Rightarrow 2 \sqrt{5} + 2 \sqrt{5} \Rightarrow 2 x + 2 x$ $=> 2sqrt5 + 2sqrt5 => 2x + 2x$

$\Rightarrow 4 x$ $=> 4x$

$\Rightarrow 4 \sqrt{5}$ $=> 4sqrt5$

How do you simplify 2√5+2√52 sqrt 5+ 2 sqrt5?