Question

find the zeros of polynomial P of x = x square - 2 x minus 8

Answer 1

answer= 4and-2.for solution see image.

Answer 2

Given,

• The polynomial is $x^2-2x-8$.

To find,

• We have to find the zeros of the polynomial $x^2-2x-8$.

Solution,

We can simply find the zero of the polynomial by equating the polynomial $x^2-2x-8$ to 0.

             $x^2-2x-8$ = 0

Now, factorizing the above quadratic polynomial, we get

            x² -4x+2x-8

Taking x common, we get

            x (x-4) +2(x-4)

Taking (x-4) common, we get

          (x-4)(x+2)

          x = 4, -2

Hence, the zeroes of the polynomial of $x^2-2x-8$ are 4 and -2.