tentukan hasil dari operasi berikut!b.√40x2√18+3per2 c.√75x√250x2√20/√160+5√10

b. √40×2√18+3/2
= √4×√10 × 2√9×√2 +3/2
= 2√10 × 2.3 √2 +3/2
= 2√10 × 6√2 + 3/2
= 12√20 +3/2
= 12.√4×√5 + 3/2
= 12.2√5 +3/2
= 24√5 + 3/2

c. √75x√250×2√20/√160+5√10
= √25×√3 × √25×√10×2√4×√5 /√2√40+5√10
= 5√3 × 5√10 × 4√5 / 2√40 + 5√10
= 25√30 × 4√5 / 2√40+5√10
= 100√150 / 2√40+5√10
= 100√3×√50 / 2√40 + 5√10
= 100.5√6 / 2√40+5√10
= 500√6 / 2√40+5√10