Question

Pls help I need to show work. Does anyone know how to do this?

Answer 1

10.

9√256

= 9 × √256

= 9 × 16

= 144

11.

√3 × √2

= √(3 × 2)

= √6

12.

√9 × √9

= √(9 × 9)

= √81

= 9

13.

√20 × √8

= √(20 × 8)

= √160

= √(16 × 10)

= √16 × √10

= 4 × √10

= 4√10

14.

√20 × √10

= √(20 × 10)

= √200

= √(100 × 2)

= √100 × √2

= 10 × √2

= 10√2