Question

please answer my question
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Answer 1

Answer:

$\sqrt{10} + \sqrt{5}$

let's take denominator first

√10+ √20+ √40- √5- √80

=√10+ 2√5+ 2√10- √5-4√5

=3√10- 3√5

=3(√10-√5)

now divide numerator by denominator

we get 5(√10-√5)

=5(√10+15)÷5

=√10+√5