Dua x pangkat 2dikurang 9 ditamba 7 sama dengan nol

By Admin ReiPosted on October 28, 2022

Dua x pangkat 2dikurang 9 ditamba 7 sama dengan nol

$2 {x}^{2} - 9 + 7 = 0 \ 2 {x}^{2} - 2 = 0 \ 2 {x}^{2} = 2 \ {x}^{2} = 2 div 2 \ {x}^{2} = 1 \ x = sqrt{1} \ x = 1$