Question

(5-akar 3)x(5+akar3) ?

Answer 1

( 5 - √3 )( 5 + √3)
= (5)(5) + (5)(√3) + (-√3)(5) + (-√3)(√3)
= 25 + 5√3 - 5√3 - 3
= 25 - 3
= 22

Answer 2

(  5 - √3  ) (  5 + √3 )
= (5 × 5) + (5)(√3) + (-√3)(5) + (-√3)(√3)
= 25 + 5√3 - 5√3 - 3
= 25 - 3
= 22
( 5-akar 3 ) × ( 5+akar 3 ) = 22 
Semoga Bermanfaat ^_^