Question

find all zeros of x square- 1

Answer 1

x^2 -1
x^1=1
x =1
this question is one zero

Answer 2

Hey!!!!!

we have
x² - 1
or

x² - 1²

Thus it becomes an identity a² - b² = (a + b)(a - b)

We can apply here

Therefore x² - 1² = (x + 1)(x - 1)

Thus x = -1 and x = +1

Hope this helps