Question

find the roots of quadratic equation x2-2x-3 =0 by quadratic formula​

Answer 1

Answer:

3 & -1

Step-by-step explanation:

x=-b+√(b²-4ac)/2a

b²-4ac=4+12=16

X=(2+√16)/2 or X=(2-√16)/2

X=(2+4)/2 or X=(2-4)/2

X=3 or X = -1