Question

How do you simplify √80+√125−√45+2√20?

Answer 1

TO find √80 +√ 125 - √45 + 2√20

Answer: 10√5

solution:

√ 16x5 + √ 25x 5 - √ 9x5 + 2 √4x5

4√5 + 5√5 - 3√5 + 2(2)√5

9√5 -3√5 + 4√5

13√5 - 3√5 = 10√5

Therefore it is 10√5

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