Question

X2 - 2X - 3 = 0 Which of the following is the value of the criterion for class equation?​

Answer 1

Answer:

x is -1 and 3

Step-by-step explanation:

x² - 2x - 3 = 0

x² - 3x + x - 3 = 0

x(x - 3) + 1(x - 3) = 0

(x + 1)(x - 3) = 0

x + 1 = 0      ; x - 3 = 0

x = -1           ; x = 3