(2akar3+3 akar5)*(2akar3-3 akar 5)

By Admin ReiPosted on December 3, 2022

(2akar3+3 akar5)*(2akar3-3 akar 5)

$(2 sqrt{3} + 3 sqrt{5} ) times (2 sqrt{3} - 3 sqrt{5} \ )$
$= 4 times 3 - 6 sqrt{15} + 6 sqrt{15} - 9 times 5$
=
$12 - 45$
= -33.
semoga bermanfaat