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B. √3 + √9 + √27= √3 + 3 + 3√3 = 3 + 4√3
C. 2√2 + 2√8 + 2√32 = 2√2 + 4√2 + 8√2 = 14√2
3. 5√24 + 3√3 ( √18 + 2√32)
= 10√6 + 3√3 ( 3√2 + 8√2)
= 10√6 + 9√6 + 24√6
= 43√6
4. ( 1 + 3√2) - ( 4 - √50)
= 1 + 3√2 - 4 + 5√2
= 8√2 - 3
5. A. 5/√3 × √3/√3 = (5√3) /3
B. 20/√5 × √5/√5 = (20√5)/5 = 4√5