√1000 - 2√40 PAKE CARA

√1000 = √100x10
=10√10
2√40 = 2√4x10
=2x2√10
= 4√10
jadi 10√10-4√10 = 6√10

akar 1000 = akar 100 x 10 = 10 akar 10

-2 akar 40 = -2 akar 4 x 10 = -4 akar 10

10 akar 10 - 4 akar 10 = 6 akar 10