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in Polynomials by (50.9k points)
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The zeros of the polynomial x2 - 2x - 3 are
(A) -3, 1
(B) -3, -1
(C) 3, -1

(D) 3, 1

1 Answer

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Best answer

ANSWER   (C)  3, -1

We have,

f(x) = x2 - 2x – 3

Now, put f(x) = 0

x2 - 2x – 3 = 0

x2 -3x + x – 3 = 0

x(x – 3) + 1(x – 3) = 0

(x + 1)(x – 3) = 0

x – 3 = 0 or x + 1 = 0

x = 3 or x = -1

So, the zeros of given polynomial are 3 and -1.

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