Question

The zeros of the polynomial x² – 2 are

(A) -√2, -√2

(B) √2, 2

(C) √2, √2

(D) -√2, √2

Answer 1

Answer: (D) -√2, √2

We have,

f(x) = x² – 2

Now put f(x) = 0

x² – 2 = 0

x² – (√2)² = 0

(x + √2)(x - √2) = 0

x + √2 = 0 or x - √2 = 0

x = -√2 or x = √2

So, the zeros of given polynomial are -√2 and √2.