1.

The zeros of the polynomial 4x2-4x +1 are(A) 1/2, 1/2(B) -1/2, 3/2(C) -1/2, -1/2(D) 3/2, 1/2

Answer»

Answer:(A) 1/2, 1/2

We have,
f(x) = 4x2 - 4x + 1
Now, put f(x) = 0
4x2 - 4x + 1 = 0
4x2 - 2x - 2x + 1 = 0
2x(2x - 1) - 1(2x - 1) = 0
(2x - 1) (2x - 1) = 0
2x - 1 = 0 or 2x - 1 = 0
2x = 1 or 2x = 1
x = 1/2 or x = 1/2 
So, the zeros of given polynomial are 1/2 and 1/2.



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