Question

given that x-√5 is avfactor of the polynomial x^3-3√5x^2-5x+15√5 find all the zeros of the polynomial

Answer 1

Hii friend,

(X-✓5) is a factor of the polynomial X³-3✓5X²-5X+15✓15.

Divide the polynomial X³-3✓5X²-5X+15✓5 by (X+✓5) .

We get,

Quotient = X²-4✓5+15

Factories the Quotient then we will get the all zeros of the polynomial X³-3✓5X²-5X+15✓5

Factories X²-4✓5 + 15. u will get the all zeros of the polynomial.


HOPE U GOT IT......