Question

1. 3√5 × 4√10
2. -6√7 × 4√8
3. 3√2 × 4√5 × √6
4. -2√8 × 3√4 × -5√12


tolong bantuin dong kak,soalnya nanti kumpul nih kak,makasih☺️​

Answer 1

1. 3√5 × 4√10

= 3√5 × 4√5 × √2

= 12√25 × √2

= (12 × 5)√2

= 60√2

2. -6√7 × 4√8

= -6√7 × 4√4×2

= -6√7 × 4×2√2

= -6√7 × 8√2

= -48√14

3. 3√2 × 4√5 × √6

= 12√10 × √6

= 12√60

= 12√4×15

= 12×2√15

= 24√15

4. -2√8 × 3√4 × -5√12

= -2√4×2 × (3×2) × -5√4×3

= -2×2√2 × 6 × -5×2√3

= -4√2 × 6 × -10√3

= -24√2 × -10√3

= 240√6