[tex]3y^{2} - 8y +4 =0[/tex] [tex]x^{2}-12x+11=0[/tex] Алгебра 8 класс

1) 3у² - 8у + 4 = 0Д = 64 - 4 × 3 × 4 = 64 - 48 = 16 > 0. √16 = 4.у1 = 8 + 4 / 6 = 12/6 = 2.у2 = 8 - 4 / 6 = 6/6 = 1.Ответ : у1 = 2 ; у2 = 1.________________________________2) х² - 12х + 11 = 0Д = 144 - 4 × 1 × 11 = 144 - 44 = 100. √100 = 10.х1 = 12 + 10 / 2 = 22/2 = 11.х2 = 12 - 10 / 2 = 2/2 = 1.Ответ : х1 = 11 ; х2 = 1.Удачи)))))