sederhana kan a. 4√3 + 3√12 -27 = b. √700 + √180 +√80 - √721= c.√12 + √27 + √75 d.2√3(2√40 +√12 e.(√2+√5) (√2 -√5)

a.) 4√3 + 3√12 - 27
= 4√3 + 3√4.3 - 27
= 4√3 + 6√3 - 27
= 10√3 - 27

b.) √700 + √180 + √80 - √721
= √100.7 + √36.5 + √16.5 - √721
= 10√7 + 6√5 + 4√5 - √721
= 10√7 + 10√5 - √721

c.) √12 + √27 + √75
= √4.3 + √9.3 + √25.3
= 2√3 + 3√3 + 5√3
= 10√3

d.) 2√3(2√40 +√12)
= 2√3 ( 2√4.10 + √4.3)
= 2√3 ( 4√10 + 2√3)
= 8√30 + 4√9
= 8√30 + 12

e.) ( √2 + √5 ) ( √2 - √5 )
= √4 - √10 + √10 - √25
= 2 - 5
= -3