Question

Zeros of x square -2x-3

Answer 1

Answer:1,-1.

Step-by-step explanation:

To find the zeros we equate polynomial to zero, Add 1 both side, Taking root both side, So, the zeros of the polynomial are 1,-1

Answer 2

Answer:

Zeroes of x^2 - 2x - 3 are:-

x = 3, x = -1

Step-by-step explanation:

Let,

x^2 - 2x - 3 = 0

=> x^2 + x - 3x - 3 = 0

=> x(x + 1) - 3(x + 1) = 0

=> [(x + 1)(x -3) = 0] ...( eqn. 1)

Now,

x + 1 = 0 (x - 3)

=> x + 1 = 0

=> [x = -1] ...( eqn. 2)

Now,

From eqn. 1,

x - 3 = 0 (x + 1)

=> x - 3 = 0

=> [x = 3] ...( eqn. 3)

Therefore, from Eqn. 2 and 3, we can say that zeroes of ( x^2 - 2x - 3 ) are (-1) and (3).

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