Question

solve the quadratic equation using formula x^2-2x-3=0​

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