Question

2 × (√1 × 5 - √16 ) =

Answer 1

2 x ( 1 x 5 - 4 )
2 x ( 5 - 4 )
2 x 1
2

Answer 2

= 2.(√1 . 5 - √16)

= 2.(1.5 - 4)

= 2.(5 - 4)

= 2.1

= 2