How do you add $3sqrt8 + 5sqrt8?$ ?

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Answer 1 · 2018-04-13T18:34:13

$16sqrt2$

Since both expressions have the same number under the radical, we can add the two expressions:

$3 + 5 = 8$ , so it becomes:
$8sqrt8$

If you want to simplify this further, you can radicalize $sqrt8$ .
$=> 8sqrt8$

$=> 8sqrt(4 * 2)$

$=> 8 * 2 sqrt2$

$=> 16sqrt2$

Hope this helps!

How do you add 3sqrt8 + 5sqrt8?3sqrt8 + 5sqrt8??