10 per akar 7 + 3=

By Admin ReiPosted on October 28, 2022

10 per akar 7 + 3=

$frac{10}{ sqrt{7} + 3 } \ = frac{10}{ sqrt{7} + 3} times frac{ sqrt{7} - 3}{ sqrt{7} - 3 } \ = frac{10( sqrt{7} - 3)}{4} \ = frac{5}{2} sqrt{7} - frac{15}{2}$