Question

(root 80+root 125-root 45)÷root 20=?
$( \sqrt{80} + \sqrt{125} - \sqrt{ 45} ) \div \sqrt{20 } = ?$
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Answer 1

Answer:

Step-by-step explanation:

√180,√245,√320.....√n^2×5

Answer 2

Answer:

3 is the answer

Step-by-step explanation:

(√80 +√125 - √45)/√20

using rationalization :

((√80 +√125 -√45)*√20)/( √20 * √20)

=(√1600 +√2500 -√900)/√400

=(40+50-30)/20

=60/20=3