Помогите!!!!!!!!!!!!!!!!!!!!!!

Question

Помогите!!!!!!!!!!!!!!!!!!!!!!

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Answer 1

3x^2 - 7x + 4 = 0
D = b^2 - 4ac = 7^2 - 4 × 3 × 4 = 49 - 48 = 1
корень из D = 1
x1,2 = (-b +/- 1)/(2a)
x1 = (7 + 1)/(2 × 3) = 8/6 = 4/3
x2 = (7 - 1)/(2 × 3) = 6/6 = 1
Ответ: 1 и 4/3