Question

zeros of x square - 2x -3 are yeah

Answer 1

here is your solution

$x {}^{2} - 2x - 3 = 0 \\ x {}^{2} - 3x + x - 3 = 0\\ x(x - 3) + 1(x - 3) = 0 \\ (x + 1)(x - 3) = 0$
now for value of X

x+1=0
x= -1

or

x -3= 0
x= 3

hope it helps you