Question

find the number of zeros of x square - 1​

Answer 1

x²+1=0

x²=-1

x=√-1

x=i ∉R

(or)

x=-b± √b²-4ac/2a

here

a=1

b=0

c=1

x=0 ± √0-4/2(1)

=0±√-4/2

=±2i/2

= +i or -i

i belongs to complex numbers.so x²+1 has no real zeroes

Answer 2

Hey mate!

number of zeroes in a quadratic equation are 2 and here x^2-1 is a quadratic equation.

x^2-1=0

x^2=1

x=root1

x=+1,-1

hope it helped ^_^