Bentuk sederhana dari (5 + akar 50) - (7 - akar 32) + (2 + akar 18) adalah...

( 5 + √50 ) - ( 7 - √32 ) + ( 2 +√18 )
= ( 5 + 5√2 ) - ( 7 - 4√2 ) + ( 2 + 3√2 )
= 5 + 5√2 - 7 + 4√2 +2 + 3√2
= 12√2

(5+√50) - (7-√32) + (2+√18)
= (5+√25.2) - (7-√16.2) + (2+√9.2)
= (5+5√2) - (7-4√2) + (2+3√2)
= 10√2 - 3√2 + 5√2
= 12√2