Question

What are the zeros x2_1​

Answer 1

Step-by-step explanation:

x

2

−1=0

⇒x

2

−1

2

=0

⇒(x−1)(x+1)=0(∵a

2

−b

2

=(a−b)(a+b))

⇒(x−1)=0,(x+1)=0

⇒x=1,x=−1