3akar 2 × akar 2 + akar 18 - akar 50

3 akar 2 x akar 2 = 3 × 2 = 6

akar 18 = akar ( 9 x 2 )= 3 akar 2

akar 50 = akar ( 25 × 2 ) = 5 akar 2

6 + 3 akar 2 - 5 akar 2 = 6 - 2 akar 2

= 3√2 x √2 + √18 - √50
= 6 + 3√2 - 5√2
= 4√2

^^