Question

Choose and write the correct alternative.
(1) The sum of the roots of one of the following equations is 3. Which one is the equation ?
(A) * - 3x + 2 = 0 (B) x + 3x + 2 = 0
(C) 3x + 6x + 10 = 0 (D) x + 3x - 2 = 0

(2) Which one of the following is not a quadratic equation ?
(A) x = 6x
(B) x² - 6x = 30
(C) x = 10
(D) x + 6 x = 10

(3) Find the discriminant of x² + 5x - 6 = 0
(A) 49
(B) 1
(C) 5
(D) 6​

Answer 1

Question 1 Don’t know
Question 2 A x = 6x
Question 3 B 1